(-)-delta-9-THC-acid-13C4 Back Catalog number: 10396.21-50-ME Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 3391.9-100 Endosulfan , 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 115-29-7 Price on request 31511 o-Xylene Price on request S-4141-10-IO Nitrogen Calibration Set-High Boiling Solvents Units: 1x1mL ampoules or 10mL screw-capped bottle Nitrogen introduced using Carbazole Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4141-0 Blank S-4141-03 Price on request