4-Hydroxy-2-butanone Back Catalog number: 73685 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0263.20-K-T Benzo[b]fluoranthene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 205-99-2 Price on request 2467.6-K-IP 2,6-Dichloro-4-nitrophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 618-80-4 Price on request 79358 4,4’-Dichlorobenzophenone Price on request