4-Hydroxy-2-butanone Back Catalog number: 73685 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681772 Octocrylene, 100 µg/ml, Acetonitrile, 1ml Price on request UFA-023S Methyl cis-11,14,17-eicosatrienoate C20:3, 10mg/ml in Heptane, 1ml Price on request 19222 EPA Method 8070 - Nitrosamines Price on request