1,3-Butadiene Back Catalog number: 79332 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72901 tert-Dodecylmercaptan, mixture of isomers Price on request 0020.26-10UG (6)Helicene, racemic mixture of two enantiomers, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 187-83-7 Price on request 672873 Metsulfuron-methyl, 100mg Price on request