WS Oxygenates Back Catalog number: 38150 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3129.4-K-IO Tetranoic acid (Butyric), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 107-92-6 Price on request 2518.7-K-ME Theophylline,1000 µg/mL,MeOH,1mL, Price on request 678407 Fenamiphos-sulfoxide, 100 µg/ml, Acetonitrile, 1 Price on request