Protopine, >98%, 20mg Back Catalog number: CFN99399 Availability: In the manufacturer's stock Price on request - + Recommended 674050 Biphenyl, 100 µg/ml, Cyclohexane, 5ml Price on request 94294 Organochlorine Pesticide Standard Price on request 0613.30-100-IO 17ß(H),21ß(H)-Hopane, 100µg/min Isooctane, 1ml Price on request