EPA Method 8260 C-19 Standard Back Catalog number: 93256 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0563.30-2MG 18ß(H)-Olean-12-en-3-one, neat, Solvent-neat, Unit 2mg, # of units-1, Cas.no. 638-97-1 Price on request 672983 Estriol, 100mg Price on request 71162 Iprodione Price on request