EPA Method 531.1 Individual Analytes Back Catalog number: 31241 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2768.8-100-AN Atrazine, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 1912-24-9 Price on request 10568.10-K-ME 2-Amino-1-Phenylbutane hydrochloride Price on request P998904 Pyruvic Acid-13C3 Sodium Salt, 5mg Price on request