Custom Metal Mix Back Catalog number: 59962 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3623.20-10MG 17 alpha-Ethynylestradiol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 57-63-6 Price on request 3804.15-25MG 6-Chloro-4-(2-chlorophenyl)-2-quinazoline carboxaldehyde, neat, Solvent-neat, Unit 25mg, # of units-, Cas.no. 93955-15-8 Price on request 95227 EPA Method 525 Internals & Surrogates Price on request