Instrument Standard 1 Back Catalog number: 52077 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10900.17-K-ME Promethazine hydrochloride,1000 µg base/mL,MeOH,1mL Price on request 9273.20-100MG Naltrexone (base, anhydrous), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 16590-41-3 Price on request 677223 2-Methoxy-1-propanol, 20mg Price on request