1,2-Epoxybutane Back Catalog number: 70429 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2233.17-5MG Aflatoxin B1, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 1162-65-8 Price on request 673248 Demeton-S-methyl-sulfone, 10.0 µg/ml, Acetonitril Price on request 70299 a,a,a-Trifluorotoluene Price on request