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 680965 2-Nonanone, 1ml Price on request 8824.8-100-CY Paraoxon-methyl, 100µg/mL, Solvent-C.hexane, Unit 1mL, # of units-1, Cas.no. 950-35-6 Price on request 53039 Interference Standard 1 Price on request