Base/Neutrals Surrogate Standard Back Catalog number: 21006 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MBP-77 3,3',4,4'-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request 673587 Fenitrothion, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 682848 Uracil, 1000mg Price on request