1,3-Diethyl-1,3-diphenyl urea Back Catalog number: 72299 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C10303000 L-(+)-Ascorbic acid, certified, 0.25g Price on request 83538 Acetophenone-DNPH Price on request 678324 1-Butanol, 5ml Price on request