(-)-delta-9-THC-acid-13C4 Back Catalog number: 10396.21-50-ME Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 50594 Copper - 20 PPM Price on request 673207 Azinphos-methyl, 100 µg/ml, Acetonitrile, 5ml Price on request 52107 WS Anions - Cal Check Price on request