QC Standard 2 Back Catalog number: 56085 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10194.24-50-AN JWH-016 N-(4-hydroxybutyl) metabolite, 50µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. NA Price on request 38333 WS Drinking Water Kit Price on request 92314 EPA Method 525 Spike C Price on request