Hexavalent Chromium (Cr +6) Back Catalog number: 50741 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8618. 9-K-ME 4-Chloromethyl-2-phenyl-1,3-dioxa-2-borolane, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. Price on request 677540 N-Ethylthiourea, 100mg Price on request 9017.5-K-DC N-Nitrosopiperidine-d10, 1000µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 960049-21-2 Price on request