EPA 1620 Standard 2 Back Catalog number: 53140 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673620 gamma-HCH, 100 µg/ml, Ethyl acetate, 5ml Price on request 2976.12-100-AN Aclonifen Price on request 679552 alpha-Zearalanol, 5mg Price on request