4-Hydroxy-2-butanone Back Catalog number: 73685 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50333 Sulfite (SO32-) Price on request 8355.13 4-Methoxy-2,2',3,4',5,5',6-heptachlorobiphenyl, Please inquire, Solvent-, Unit , # of units-, Cas.no. Price on request 8568.20-10MG Benzo[a]pyrene, Comet assay grade, , Solvent-, Unit , # of units-, Cas.no. 50-32-8 Price on request