1,3-Butadiene Back Catalog number: 79332 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2495.7-K-ME Mono-n-heptyltin trichloride, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 59344-47-7 Price on request 3851.13-K-ME (±)-Ibuprofen-d3 (?-methyl-d3),1000 µg/mL,MeOH,1mL, Price on request PFUDA Perfluoro-n-undecanoic acid, 1.2ml x 50ug/ml, methanol Price on request