1,3-Butadiene Back Catalog number: 95491 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA14170000ME Hexachloro-1,3-butadiene, 100µg/mL in MeOH, 1ml Price on request 682967 Surrogate Mix ISO 27065 and ISO 18889, , , 500ml Price on request TCC N-(4-chlorophenyl)-N'-(3,4-dichlorophenyl)urea , 1.2ml x 50ug/ml, methanol Price on request