Color Back Catalog number: 54255A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2562.19-K-ME Sodium p-n-tridecylbenzenesulfonate, 1000µg/mL in MeOH, 1ml Price on request 1733.18-K-IO 1,2-Benz[a]anthraquinone, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2498-66-0 Price on request 96611 Naloxone-3-ß-D-glucuronide.H2O Price on request