Levulinic acid Back Catalog number: 72423 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52065 Spiking Standard 2 Price on request 679108 2,4'-DDT, 10.0 µg/ml, Cyclohexane, 10ml Price on request 2618.31-10UG 17ß(H),21ß(H)-(22RS)-Homohopane, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 53584-62-6 Price on request