EPA Method 525 - Internal Standard Back Catalog number: 30031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 66095 2,2',3,5',6-Pentachlorobiphenyl (95) Price on request MBP-178 2,2',3,3',5,5',6-Heptachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request 9425.8-10MG Valproic acid-d4, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 87745-17-3 Price on request