Metals Calibration Standard Revised Back Catalog number: 50189 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70074 2-Chloroethyl vinyl ether Price on request 2031.12-50-T 2,7-Dichlorodibenzo-p-dioxin, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 33857-26-0 Price on request 2105.8-25MG 1,5-Bis-(1-methylethyl)-biguanide HCl, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 45095-69-0 Price on request