17 alpha(H),21ß(H)-30-Norhopane, 50µg/mL in Isooctane, 1ml Back Catalog number: 1321.29-50-IO Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 1112.20-100-TX5 6-Nitrobenzo[a]pyrene-d11, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 352431-12-0 Price on request 3494.11-100-AN Propoxur, 100µg/ml in Acetonitrile, 1ml Price on request 8457.9-K-T Tris(monochloropropyl) phosphate, isomer mixture ,1000 µg/mL,toluene,1mL, Price on request