4-Hydroxy-2-butanone Back Catalog number: 73685 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 53016 Calibration Standards Set Price on request 1700-0600 Artificial Urine Medium, Stabilized, 200mL Price on request 8388.X-K-W Triton X-100 (n=4-17) Price on request