Calibration Standard Kit Back Catalog number: 53090 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2209.6-100MG Tris-(aziridinyl)-phosphineoxide, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 545-55-1 Price on request 3635.22-25-AN U{13C22}-HT-2 Toxin, 25µg/mL, Solvent-acetonitrile, Unit 1.2mL, # of units-1, Cas.no. Price on request 32411 Tetrachloroethene Price on request