TPH Internal Standard Back Catalog number: 92636 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679317 Carbophenothion-methyl, 100 µg/ml, Methanol, 1ml Price on request 674818 D5-Benzoic acid, 500mg Price on request 3769.17-1MG Aflatoxin M2, neat, Solvent-neat, Unit 1mg, # of units-1, Cas.no. 6885-57-0 Price on request