Perthane Back Catalog number: 71134 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2131.9-1G 2,4-Dimethylbenzoic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 611-01-8 Price on request 1768.16-10MG 1,3-Diaminopyrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 92821-64-2 Price on request 92170 CFC Calibration Mix Price on request