17 alpha(H),21 alpha(H)-Hopane, 50µg/mL in Isooctane, 1ml Back Catalog number: 2888.30-50-IO Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 2371.9-K-ME Syringaldehyde, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 134-96-3 Price on request BDE-139 2,2',3,4,4',6-Hexabromodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request 9209.15-100-MEX5 O-Desmethyl tramadol hydrochloride , 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-5, Cas.no. Price on request