EPA Method 1666Labeled Standard Back Catalog number: 82491 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50416 Metals Mix 6B Price on request 59325 Anions Mix B Price on request 1196.24-100MG 5ß(H)-Cholanic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 546-18-9 Price on request