O,O-Dimethylthiophosphate-13C2, sodium salt Back Catalog number: 10708.2-100-ME Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 10412.4-100-ME Sodium DL-3-hydroxybutyrate-3,4,4,4-d4 Price on request X9216 2,4,5-T methyl ester Price on request 82509 EPA Method 8250/8250A System Performance Check Price on request