trans-1,4-Dichloro-2-butene Back Catalog number: 34251 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 92693 EPA Method 525.2 Standard Price on request 71303 Di-n-amyl phthalate Price on request 11932-10-50-AN N-?Methylperfluorooctanesulfo?namide,50 µg/mL,acetonitrile,1mL, Price on request