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The Comprehensive Metabolic Panel is intended to be used for the quantitative determination of Alkaline Phosphate (ALP), Alanine Aminotransferase (ALP/GPT), Aspartate Aminotransferase (AST/GOT), Blood Urea Nitrogen (BUN) and Creatinine (CREA) in concentrations in lithium-heparinized venous whole blood, heparinized plasma, or serum in a clinical laboratory setting or point-of-care location. - Alkaline phosphatase or its isoenzymes measurements are used in the diagnosis and treatment of liver, bone, parathyroid, and intestinal diseases. - Alanine aminotransferase measurements are used in the diagnosis and treatment of certain liver diseases (e.g., viral hepatitis and cirrhosis) and heart diseases. - Aspartate aminotransferase measurements are used in the diagnosis and treatment of certain types of liver and heart disease. - Blood urea nitrogen measurements are used in the diagnosis and treatment of certain types of renal and metabolic diseases. - Creatinine measurements are used in the diagnosis and treatment of renal dialysis, and as a calculation basis for measuring other urine analytes. The skyla Clinical Chemistry Analyzer is an in-vitro diagnostic device for the quantitative determination of clinical chemistry analytes in lithium-heparinized venous whole blood, heparinized plasma, or serum. It is for clinical laboratory and point-of-care use. The Minicare C300 Clinical Analyzer is an in-vitro diagnostic devices for the quantitative determination of clinical chemistry analytes in lithium-heparinized venous whole blood, heparinized plasma, or serum. It is for clinical laboratory and point-of-care use.

The skyla Clinical Chemistry Analyzer, Minicare C300 Clinical Chemistry Analyzer (private label) and Comprehensive Metabolic Panel is an automatic chemistry system intended for use in clinical laboratories or point-of-care locations. The system consists of a portable analyzer and single-use disposable reagent panel discs. The analyzer utilizes precision photometric measurement technology, combined with the use of specific reagent panel disc, to measure the amount of substance in blood. The analyzer measures absorbance change of each reaction well in reagent panel disc and covert it to a concentration value for each analyte included on the panel. The skyla and Minicare Comprehensive Metabolic Panel reagent disc (which contains the Alkaline Phosphatase, Alanine Aminotransferase, Aspartate Aminotransferase, Blood Urea Nitrogen and Creatinine test systems) is designed to separate a heparinized venous whole blood sample into plasma and blood cells. The disc meters the required quantity of plasma and diluent, mixes the plasma with diluent, and delivers the mixture to the reaction cuvettes along the disc perimeter. The diluted plasma mixes with the reagent beads, initiating the chemical reactions that are then monitored by the analyzer.

The RX Daytona Plus Chemistry analyzer is a bench top fully automated random access clinical chemistry analyzer intended for use in clinical laboratories. It is intended to be used for a variety of assay methods. The RX Daytona Plus includes an optional Ion Selective Electrode (ISE) module for the measurement of sodium, potassium and chloride in serum and urine. The RX Daytona Plus is not for Point-Of-Care testing. Sodium measurements are used in the diagnosis and treatment of diseases involving electrolyte imbalance. Potassium measurements monitor electrolyte balance in the diagnosis and treatment of disease conditions characterized by low or high blood potassium levels. Chloride measurements are used in the diagnosis and treatment of electrolyte and metabolic disorders. The RX Daytona Plus AST reagent is for the quantitative in vitro diagnostic determination of the activity of the enzyme Aspartate aminotransferase (AST) in human serum. Aspartate amino transferase measurements are used in the diagnosis and treatment of certain types of liver and heart diseases.

The RX Daytona Plus is a bench-top fully automated random access clinical analyser intended for use in clinical laboratories. The RX Daytona Plus contains an ISE .module for the measurement of Potassium, Chloride and Sodium. The RX Daytona Plus has the capacity to perform up to 270 photometric tests or 450 tests per hour with ISE's and offers primary tube sampling, on-board sample dilution and a cooled reagent compartment. - Cuvette wash system . - STAT facility . - Direct interface with host computer . - . Automatic re-run and pre-dilution functions The RX Daytona Plus uses dedicated software for easy access to all system facilities and functions. operating functions and provides a comprehensive data management system. Reagents: AST reagent is supplied in a kit containing: - . 4 x 20.0 mL Buffer/ enzyme - . 4 x 7.0 mL α-οχοςlutarate/Coenzyme. The primary reagent contains L-Aspartic acid, MDH, Tris Buffer and preservative, The secondary reagent contains a-oxoglutarate, NADH and preservatives. ISE Electrodes, Sodium, Potassium and Chloride are comprised of ISE Calibrator H and L, ISE diluent, ISE reference solution and ISE etching solution.

The ACE Alkaline Phosphatase Reagent is intended for the quantitative determination of alkaline phosphatase activity in serum and lithium heparin plasma using the ACE, ACE Alera, and ACE Axcel Clinical Chemistry Systems. Measurements of alkaline phosphatase are used in the diagnosis and treatment of liver, bone, parathyroid, and intestinal diseases. This test is intended for use in clinical laboratories and physician office laboratories. For in vitro diagnostic use only. The ACE Amylase Reagent is intended for the quantitative determination of α-amylase activity in serum and lithium heparin plasma using the ACE, ACE Alera, and ACE Axcel Clinical Chemistry Systems. Amylase measurements are used primarily for the diagnosis and treatment of pancreatitis (inflammation of the pancreas). This test is intended for use in clinical laboratories and physician office laboratories. For in vitro diagnostic use only. The ACE ALT Reagent is intended for the quantitative determination of alanine aminotransferase activity in serum and lithium heparin plasma using the ACE, ACE Alera, and ACE Axcel Clinical Chemistry Systems. Alanine aminotransferase measurements are used in the diagnosis and treatment of certain liver diseases (e.g., viral hepatitis and cirrhosis) and heart diseases. This test is intended for use in clinical laboratories and physician office laboratories. For in vitro diagnostic use only. The ACE AST Reagent is intended for the quantitative determination of aspartate aminotransferase activity in serum and lithium heparin plasma using the ACE, ACE Alera, and ACE Axcel Clinical Chemistry Systems. Measurements of aspartate aminotransferase are used in the diagnosis and treatment of certain types of liver and heart disease. This test is intended for use in clinical laboratories and physician office laboratories. For in vitro diagnostic use only.

In the ACE Alkaline Phosphatase Reagent assay, alkaline phosphatase catalyzes the hydrolysis of colorless p-nitrophenyl phosphate to p-nitrophenol and inorganic phosphate. In an alkaline solution (pH 10.5), p-nitrophenol is in the phenoxide form and has a strong absorbance at 408 nm. The rate of increase in absorbance, monitored bichromatically at 408 nm/486 nm, is directly proportional to the alkaline phosphatase activity in the sample. In the ACE Amylase Reagent assay, α-amylase hydrolyzes the 2-chloro-p-nitrophenyl-α-D-maltotrioside substrate to release 2-chloro-p-nitrophenol and form 2-chloro-p-nitrophenyl-α-D-maltoside, maltotriose and glucose. The rate of increase in absorbance, monitored bichromatically at 408 nm/ 647 nm, is directly proportional to the α-amylase activity in the sample. In the ACE ALT Reagent assay, alanine aminotransferase converts the L-alanine and α-ketoglutarate substrates in the reagent to L-glutamate and pyruvate, respectively. Lactate dehydrogenase (LDH) catalyzes the oxidation of the reduced cofactor to the cofactor. The rate of conversion of the reduced cofactor to the cofactor can be determined by monitoring the decrease in absorbance bichromatically at 340 nm/647 nm. This rate of conversion from the reduced cofactor to the cofactor is a function of the activity of ALT in the sample. In the ACE AST Reagent assay, aspartate aminotransferase converts the L-aspartate and α-ketoglutarate in the reagent to oxaloacetate and L-glutamate, respectively. The oxaloacetate undergoes reduction, with concurrent oxidation of NADH to NAD+ in the malate dehydrogenase-catalyzed indicator reaction. NADH absorbs strongly at 340 nm, whereas NAD+ does not. Therefore, the rate of conversion of NADH to NAD+ can be determined by monitoring the decrease in absorbance bichromatically at 340 nm/647 nm. This rate of conversion from NADH to NAD+ is a function of the activity of AST in the sample. Lactate dehydrogenase is added to prevent interference from endogenous pyruvate, which is normally present in blood.

The S TEST Reagent Cartridge Alanine Amino Transferase (ALT) is intended for the quantitative measurement of the activity of the enzyme alanine amino transferase (ALT) in serum, lithium heparin plasma, K3 EDTA plasma, and sodium citrate plasma on the Hitachi Clinical Analyzer E40. The test system is intended for use in clinical laboratories or physician office laboratories. For in vitro diagnostic use only. ALT measurements are used in the diagnosis and treatment of certain liver diseases (e.g., viral hepatitis and cirrhosis) and heart diseases. The S TEST Reagent Cartridge Aspartate Amino Transferase (AST) is intended for the quantitative measurement of the activity of the enzyme aspartate amino transferase (AST) in serum, lithium heparin plasma, K3 EDTA plasma, and sodium citrate plasma on the Hitachi Clinical Analyzer E40. The test system is intended for use in clinical laboratories or physician office laboratories. For in vitro diagnostic use only. AST measurements are used in the diagnosis and treatment of certain liver diseases (e.g., viral hepatitis and cirrhosis) and heart diseases.

The Hitachi Clinical Analyzer is an automatic, bench-top, wet chemistry system intended for use in clinical laboratories or physician office laboratories. The instrument consists of a desktop analyzer unit, an operations screen that prompts the user for operation input and displays data, a printer, and a unit cover. The analyzer unit includes a single probe, an incubation rotor, carousels for sample cups and reagent cartridges, and a multi-wavelength photometer. The single-use reagent cartridges may be placed in any configuration on the carousel, allowing the user to develop any test panel where the reagent cartridges are available. The S TEST reagent cartridges are made of plastic and include two small reservoirs capable of holding two separate reagents (R1 and R2), separated by a reaction cell/photometric cuvette. The cartridges also include a dot code label that contains all chemistry parameters, calibration factors, and other production-related information, e.g., expiration dating. The dimensions of the reagent cartridges are: 13.5 mm (W) × 28 mm (D) × 20.2 mm (H). System operation: After the sample cup is placed into the carousel, the analyzer pipettes the sample, pipettes the reagent, and mixes (stirs) the sample and reagent together. After the sample and reagent react in the incubator bath, the analyzer measures the absorbance of the sample, and based on the absorbance of the reactions, it calculates the concentration of analyte in the sample. The test system can measure analytes in serum or plasma and results are available in approximately 15 minutes per test. This submission is for reagent cartridge test systems for glucose.

The S TEST Reagent Cartridge Total Bilirubin (T-BIL) is intended for the quantitative determination of total bilirubin in serum, lithium heparin plasma, K3 EDTA plasma, and sodium citrate plasma using the Hitachi Clinical Analyzer E40. The S TEST Reagent Cartridge Total Bilirubin is intended for use in clinical laboratories or physician office laboratories. For in vitro diagnostic use only. Total Billirubin measurements are used in the diagnosis and treatment of disorders of the liver.

The Hitachi Clinical Analyzer is an automatic, bench-top, wet chemistry system intended for use in clinical laboratories or physician office laboratories. The instrument consists of a desktop analyzer unit, an operations screen that prompts the user for operation input and displays data, a printer, and a unit cover. The analyzer unit includes a single probe, an incubation rotor, carousels for sample cups and reagent cartridges, and a multi-wavelength photometer. The single-use reagent cartridges may be placed in any configuration on the carousel, allowing the user to develop any test panel where the reagent cartridges are available. The S TEST reagent cartridges are made of plastic and include two small reservoirs capable of holding two separate reagents (R1 and R2), separated by a reaction cell/photometric cuvette. The cartridges also include a dot code label that contains all chemistry parameters, calibration factors, and other production-related information, e.g., expiration dating. The dimensions of the reagent cartridges are: 13.5 mm (W) × 28 mm (D) × 20.2 mm (H). System operation: After the sample cup is placed into the carousel, the analyzer pipettes the sample, pipettes the reagent, and mixes (stirs) the sample and reagent together. After the sample and reagent react in the incubator bath, the analyzer measures the absorbance of the sample, and based on the absorbance of the reactions, it calculates the concentration of analyte in the sample. The test system can measure analytes in serum or plasma and results are available in approximately 15 minutes per test. This submission is for Reagent Cartridge Total Bilirubin. Chemistry reaction: Nitrous acid method: Total bilirubin in samples is oxidized to biliverdin by the action of nitrous acid at pH 3.7. The concentration of total bilirubin can be determined by measuring the decrease of absorbance at a wavelength of 450nm .

The ACE ALT Reagent is intended for the quantitative determination of alanine aminotransferase activity in serum using the ACE Axcel Clinical Chemistry System. Alanine aminotransferase measurements are used in the diagnosis and treatment of certain liver diseases (e.g., viral hepatitis and cirrhosis) and heart diseases. This test is intended for use in clinical laboratories or physician office laboratories. For in vitro diagnostic use only. The ACE AST Reagent is intended for the quantitative determination of aspartate aminotransferase activity in serum using the ACE Axcel Clinical Chemistry System. Measurements of aspartate aminotransferase are used in the diagnosis and treatment of certain types of liver and heart disease. This test is intended for use in clinical laboratories or physician office laboratories. For in vitro diagnostic use only. The ACE γ-GT Reagent is intended for the quantitative determination of gamma-glutamyltransferase activity in serum using the ACE Axcel Clinical Chemistry System. Gamma-glutamyltransferase measurements are used in the diagnosis and treatment of liver diseases such as alcoholic cirrhosis and primary and secondary liver tumors. This test is intended for use in clinical laboratories or physician office laboratories. For in vitro diagnostic use only.

In the ACE ALT Reagent assay, alanine aminotransferase in serum converts the L-alanine and α-ketoglutarate substrates in the reagent to L-glutamate and pyruvate. Lactate dehydrogenase (LDH) catalyzes the oxidation of the reduced cofactor to the cofactor. The rate of conversion of the reduced cofactor to the cofactor can be determined by monitoring the decrease in absorbance bichromatically at 340 nm/647 nm. This rate of conversion from the reduced cofactor to the cofactor is a function of the activity of ALT in the sample. In the ACE AST Reagent assay, aspartate aminotransferase in serum converts the L-aspartate and α-ketoglutarate in the reagent to oxalacetate and L-glutamate. The oxalacetate undergoes reduction with simultaneous oxidation of NADH to NAD+ in the malate dehydrogenase catalyzed indicator reaction. NADH absorbs strongly at 340 nm, whereas NAD+ does not. Therefore, the rate of conversion of NADH to NAD+ can be determined by monitoring the decrease in absorbance bichromatically at 340 nm/647 nm. This rate of conversion from NADH to NAD+ is a function of the activity of AST in the sample. Lactate dehydrogenase is added to prevent interference from endogenous pyruvate, which is normally present in serum. In the ACE γ-GT Reagent assay, γ-GT in serum catalyzes the transfer of the γ-glutamyl group from L-γ-glutamyl-3-carboxy-4-nitroanilide to glycylglycine in the reagent. The product, 5-amino-2-nitrobenzoate, absorbs strongly at 408 nm. The rate of increase in absorbance, monitored bichromatically at 408 nm/486 nm, is directly proportional to the γ-GT activity in the sample.

The ELITech Clinical system Selectra ProM is an automated clinical chemistry system intended for use in clinical laboratories. It is intended to be used for a variety of assay methods that have been applied to spectrophotometric and electrochemical techniques. The system has two core modules: one consisting of a spectrophotometric system for measurement of analytes using spectrophotometric techniques, such as end point, rate and turbidimetric assays. The second module is an electrometer used for measurement of electrolytes. For in vitro diagnostic use only. ELITech Clinical Systems AST/GOT 4+1 SL is a reagent for the quantitative in vitro diagnostic determination of the activity of the enzyme Aspartate Amino Transferase (AST) in human serum and plasma on ELITech Clinical Systems Selectra ProM analyzer. Aspartate Amino Transferase measurements are used in the diagnosis and treatment of certain types of liver and heart disease. ELITech Clinical Systems ELICAL 2 is a multi-parametric calibrator for in vitro diagnostic use in the calibration of quantitative ELITech Clinical Systems methods on the ELITech Clinical Systems Selectra ProM analyzers. ELITech Clinical Systems ELITROL II are multiparametric control sera for in vitro diagnostic use in accuracy and precision of quantitative ELITech Clinical Systems methods on ELITech Clinical Systems Selectra ProM analyzer equipped with ISE module. ELITech Clinical Systems ISE Calibrators are used for the calibration of sodium (Na+), potassium (K+), and chloride (Cl-) on ELITech Clinical Systems Selectra ProM analyzer equipped with ISE module. ISE Sodium Electrode: The sodium electrode for the ELITech Clinical Systems Selectra ProM is intended for the quantitative determination of sodium in serum and plasma. Sodium measurements are used in the diagnosis and treatment of aldosteronism (excessive secretion of the hormone aldosterone), diabetes insipidus (chronic excretion of large amounts of dilute urine accompanied by extreme thirst), adrenal hypertension. Addison's disease (caused by destruction of the adrenal glands), dehydration, inappropriate anticluretic hormone secretion or other diseases involving electrolyte imbalance. ISE Potassium Electrode: The potassium electrode for the ELITech Clinical Systems Selectra ProM is intended for the quantitative determination of potassium in serum and plasma. Potassium measurements are used to monitor electrolyte balance in the diagnosis and treatment of diseases conditions characterized by low or high blood potassium levels. ISE Chloride Electrode: The Chloride electrode for the ELITech Clinical Systems Selectra ProM is intended for the quantitative determination of chloride in serum and plasma. Chloride measurements are used in the diagnosis and treatment of electrolyte and metabolic disorders such as cystic fibrosis and diabetic acidosis.

The Selectra ProM is an automated, in-vitro diagnostic analyzer capable of performing clinical chemistry, specific protein and electrolyte tests. Analytes are measured photometrically or turbidimetrically: the analyzer also has an ISE module for measuring sodium, potassium and chloride electrometrically. The Selectra ProM instrument is a random access analyzer designed to be operated on a bench top in the professional environment using a combination of a photometric analysis unit and an ion selective electrodes (ISE). AST/GOT 4+1 SL is available as kit only. It consists of 2 reagents: Reagent 1 contains Tris buffer. L-Aspartate; Lactate dehydrogenase (LDH) (microorganisms), Malate dehydrogenase (MDH) (bacterial) and sodium azide. Reagent 2 contains α-Ketoglutarate, NADH and sodium azide. The Sodium, Potassium and Chloride ISE Electrodes are comprised of the electrodes plus ISE Reference Solution, ISE Diluent, ISE Calibrators. ELITech Clinical Systems ELICAL 2 is a lyophilized calibrator based on human serum containing constituents to ensure optimal calibration. ELICAL 2 is prepared exclusively from the blood of donors tested individually and found to be negative for HbsAg and to antibodies to HCV and HIV according to FDAapproved methods or methods in compliance with the European Directive 98/79/EC, Annex II, List A. ELITROL I and ELITROL II are two level quality control products consisting of lyophilized human serum containing constituents at desired levels. ELITROL I and ELITROL II are prepared exclusively from the blood of donors tested individually and found to be negative for HbsAg and to antibodies to HCV and HV according to FDA-approved methods in compliance with the European Directive 98/79/EC, Annex II, List A.

The Vital Scientific Selectra Junior Analyzer (also trademarked as the Vital Scientific Flexor Junior Analyzer) is a discrete photometric chemistry analyzer for in vitro diagnostic use. ELITech Clinical Systems AST/GOT 4+1 SL reagent is for the quantitative in vitro diagnostic determination of the activity of the enzyme Aspartate amino transferase in human serum and plasma on the Vital Scientific Selectra/Flexor Analyzers. Aspartate Amino Transferase (AST) measurements are used in the diagnosis and treatment of certain types of liver and heart disease. ELITech Clinical Systems ELICAL 2 is a single parameter calibrator for in vitro diagnostic use in the calibration of quantitative ELITech Clinical Systems methods on the Vital Scientific Selectra Junior Analyzer and the Vital Scientific Flexor Junior Analyzer. ELITech Clinical Systems ELITROL I is a single parameter control serum for in vitro diagnostic use in accuracy control of quantitative ELITech Clinical Systems methods on the Vital Scientific Selectra Junior Analyzer and the Vital Scientific Flexor Junior Analyzer. ELITech Clinical Systems ELITROL II is a single parameter control serum for in vitro diagnostic use in accuracy control of quantitative ELITech Clinical Systems methods on the Vital Scientific Selectra Junior analyzer and the Vital Scientific Flexor Junior analyzers.

The reagent device for this submission is available as kit only. It consists of 2 reagents: Reagent 1 contains Tris buffer, L-Aspartate; Lactate dehydrogenase (LDH) (microorganisms), Malate dehydrogenase (MDH) (bacterial) and sodium azide. Reagent 2 contains alpha-Ketoglutarate, NADH and sodium azide The Vital Scientific Selectra Junior is a benchtop discrete chemistry photometric analyzer for in vitro diagnostic use. ELITech Clinical Systems ELICAL 2 is a lyophilized calibrator based on human serum containing constituents to ensure optimal calibration. ELICAL 2 is prepared exclusively from the blood of donors tested individually and found to be negative for HbsAg and to antibodies to HCV and HIV according to FDA-approved methods or methods in compliance with the European Directive 98/79/EC, Annex II, List A. ELITech Clinical Systems ELITROL I and ELITROL II are two level quality control products consisting of lyophilized human serum containing constituents at desired levels. Elitrol I and Elitrol II are prepared exclusively from the blood of donors tested individually and found to be negative for HbsAg and to antibodies to HCV and HIV according to FDA-approved methods or methods in compliance with the European Directive 98/79/EC, Annex II, List A.

The ASAT (GOT) FS assay is intended for quantitative in vitro diagnostic determination of the activity of the enzyme aspartate amino transferase (AST) in human serum and lithium heparin plasma on the Hitachi 917 instrument. Measurement of aspartate amino transferase levels aids in the diagnosis and treatment of certain types of liver and heart disease. For in vitro diagnostic use on the Hitachi 917 instrument. TruCal U is used as a calibrator for the DiaSys ASAT (GOT) FS assay. For in vitro diagnostic use for quantitative testing on the Hitachi 917 instrument. TruLab N and TruLab P control sera are used to monitor accuracy and precision for the DiaSys ASAT (GOT) FS assay.

The DiaSys ASAT (GOT) FS assay is based on NADH reduction to NAD, as shown in the following equation: L-Aspartate + 2-Oxoglutarate <ASAT> L-Glutamate + Oxalacetate Oxalacetate + NADH + H' < MDH > L-Malate + NAD* Addition of pyridoxal-5-phosphate (P-5-P) stabilizes the transaminases and avoids falsely low values in samples containing insufficient endogenous P-5-P, e.g. from patients with myocardial infarction, liver disease and intensive care patients . TraCal U calibrator-Serum based calibrator for use in the calibration of the quantitative DiaSys ASAT (GOT) FS assay on Hitachi 917. Trulab N and TruLab P controls-Serum based control serum in normal and pathological range for use in quality control for monitoring accuracy and precision of the quantitative DiaSys ASAT (GOT) FS assay on Hitachi 917.

The S-Test Alkaline Phosphatase Reagent is intended for the quantitative determination of alkaline phosphatase activity in serum or heparin plasma using the S40 Clinical Analyzer. Measurements of alkaline phosphatase are used in the diagnosis and treatment of liver, bone, parathyroid, and intestinal diseases. This test is intended for use in clinical laboratories or physician office laboratories. For in vitro diagnostic use only. The S-Test Amylase Reagent is intended for the quantitative determination of amylase activity in serum or heparin plasma using the S40 Clinical Analyzer. Amylase measurements are used primarily for the diagnosis and treatment of pancreatitis (inflammation of the pancreas). This test is intended for use in clinical laboratories or physician office laboratories. For in vitro diagnostic use only. The S-Test Aspartate Aminotransferase Reagent is intended for the quantitative determination of aspartate aminotransferase activity in serum or heparin plasma using the S40 Clinical Analyzer. Aspartate aminotransferase measurements are used in the diagnosis and treatment of certain types of liver and heart disease. This test is intended for use in clinical laboratories or physician office laboratories. For in vitro diagnostic use only.

The S-Test alkaline phosphatase (ALP) reagent cartridge used with the S40 Clinical Analyzer is intended for quantitative in vitro diagnostic determination of ALP activity in serum or heparin plasma based on an enzymatic photometric test using p -nitrophenyl phosphate as a substrate. The S-Test amylase (AMY) reagent cartridge used with the S40 Clinical Analyzer is intended for quantitative in vitro diagnostic determination of amylase activity in serum or heparin plasma based on an enzymatic photometric test using 2-chloro-4-nitrophenyl-alpha-galactopyranosyl maltoside (Gal-G2-CNP) as a substrate. The S-Test aspartate aminotransferase (AST) reagent cartridge used with the S40 Clinical Analyzer is intended for quantitative in vitro diagnostic determination of AST in serum or heparin plasma based on an enzymatic photometric test using L-aspartate and alpha-ketoglutarate as substrates.