Hexavalent Chromium (Cr 6+) Back Catalog number: 56161 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3971.7-1ML 4-Methyl-1-hexene, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 3769-23-1 Price on request 1981.12-K-MEX5 Tri-n-butyltin chloride, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-5, Cas.no. 1461-22-9 Price on request X9111 Heptachlor Price on request