17 alpha(H),21ß(H)-(22S)-Homohopane, 50µg/mL in Isooctane, 1ml Back Catalog number: 1338.31-50-IO Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 79233 Tetrachloro-m-xylene Price on request 10140.18-10MG Estrone-2,4,16,16-d4, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 53866-34-5 Price on request 54167 Solids (EPA Methods 160.1,.2,.3) Price on request