1,3-Butadiene Back Catalog number: 33004 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 98520 PCB PWDM Standard Price on request 30057 EPA Method 552 Surrogate Standard Methyl Ester Price on request 4H146 2,2',3,4',5,5'-Hexachloro-4-biphenylol, 1.2ml x 50ug/ml, nonane Price on request