Verification II Standard 1 Back Catalog number: 53019 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA14470000AL Isoproturon, 100µg/ml n Acetonitrile, 1ml Price on request 9743.21-100MG delta-9-THC Price on request 71581 2,3,4,6-Tetrachlorophenol-PFB derivative Price on request