1,3-Butadiene Back Catalog number: 97296 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2540.7-K-ME Paraxanthine, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 611-59-6 Price on request 680598 Lignoceric acid, 100 µg/ml, Acetonitrile, 1ml Price on request 3379.8-100 Dicrotophos, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 141-66-2 Price on request