VPH Calibration Standard - Draft 01-2012 Back Catalog number: 96995 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72496 Chlorpyrifos oxon Price on request 2522.8-100MG 4-Hydroxyphenylacetic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 156-38-7 Price on request 2349.6-100MG Phenol-d6, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 13127-88-3 Price on request