WS PAH Benzo(a)pyrene Back Catalog number: 38033 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675431 Paraquat dichloride hydrate, 100mg Price on request 70491 1,2,3,4-Tetramethylbenzene Price on request 40057 EPA Method 642 - Analytes Price on request