PAH Standard Back Catalog number: 97965 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1844.14-1G 4-n-Heptylbenzoic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 38350-87-7 Price on request 684220 N-Nitroso-di-n-butylamine, 100 µg/ml, Methanol, Price on request 71970 4,4'-Dichlorobenzhydrol Price on request