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 38033 WS PAH Benzo(a)pyrene Price on request BDE-100 2,2',4,4',6-Pentabromodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request 79381 1-Methyl-2-pyrrolidinone Price on request