Color Back Catalog number: 54255 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 19041 Pentachloronitrobenzene Price on request 3994.9-K-CY trans-1,2,cis-1,4-1,2,4-Trimethylcyclohexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 7667-59-6 Price on request 9391.10-50UG 8:2Mono-PAPS, neat, Solvent-neat, Unit ca. 50 µg, # of units-1, Cas.no. 57678-03-2 Price on request