Ammonia as N Back Catalog number: 54113 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10627.12-50-NN 1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin ,50 µg/mL,n-nonane,1mL, Price on request EC-4976-2 Method 1668A/B Calibration Solution [CS2], 5ng/ml in Nonane, 0,2ml Price on request 3356.14-100-DC 4,4'-DDD (=TDE), 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 72-54-8 Price on request