Propham Back Catalog number: 70819 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10412.4-100-ME Sodium DL-3-hydroxybutyrate-3,4,4,4-d4 Price on request 94712 Volatile Screening Standard Price on request MCDE-180 2,2',3,4,4',5,5'-Heptachloro[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane Price on request