Surrogate Standard Back Catalog number: 92703 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9274.20-K-ME Naltrexone hydrochloride, 1000µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 16676-29-2 Price on request 681069 Ibuprofen, 100 µg/ml, Methanol, 1ml Price on request 79278 gamma-BHC Price on request