Internal Standard Back Catalog number: 90396 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1770.16-5MG 1,8-Diaminopyrene, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 30269-04-6 Price on request E589288 trans-2,3-Epoxyfarnesol, 250mg Price on request 70228 Nitrobenzene, 1000µg/ml in MeOH, 1ml Price on request