Calibration Standard Kit Back Catalog number: 53090 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8986.4-K-AN N-Nitrosopiperazine, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 5632-47-3 Price on request 0978.10-100-T Naphthalene-d8, 100 µg/mL,toluene, 1mL Price on request 90502 Carbon disulphide Price on request