Semi-Volatile Surrogate Standard Back Catalog number: 92257 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 38339 WS Nitrosamines Price on request 1616.14-10MG 4-Methyldiphenylmethane, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 620-83-7 Price on request 54187 Sodium Butyrate (C3H7COOH) Price on request