EPA Method 8330 Analyte Back Catalog number: 79073 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1579.4-1G Metformin hydrochloride, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 1115-70-4 Price on request 677220 4-(3-Indolyl)-butyric acid, 250mg Price on request 59786 Metals Mix Price on request