EPA Method 622 / 8141 - Analytes Back Catalog number: 90378 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70232 N-Nitrosodi-n-propylamine, 1000µg/mL in MeChl, 1ml Price on request 1098.8-K-HX 2,3-Dihydrobenzofuran, 1000µg/mL, Solvent-n-hexane, Unit 1mL, # of units-1, Cas.no. 496-16-2 Price on request 96554 (±)-Norketamine HCl Price on request