17 alpha(H),21ß(H)-(22RS)-Homohopane, 50µg/mL in Isooctane, 1ml Back Catalog number: 2255.31-50-IO Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 79080 EPA Method 8330 Analyte Price on request 679749 Estrone, 250mg Price on request 2257.12-50-IO 3'-Fluoro-3,4-dibromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request