EPA Method 8260 Internal Standard - Revised Back Catalog number: 21013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10396.21-50-ME (-)-delta-9-THC-acid-13C4 Price on request 9320.15-5MG Carbamazepine-d10 Price on request 1214.17-200-T 8-Methyl-11(H)-benzo[a]carbazole, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 21064-33-5 Price on request