rac 4-Hydroxy Ephedrine Hydrochloride, 10mg Back Catalog number: H825305 Manufacturer: TORONTO RESEARCH CHEMICALS Availability: 2 weeks Price on request - + Recommended S-4141-1-IO Nitrogen Calibration Set-High Boiling Solvents, Blanc Units: 1x1mL ampoules or 10mL screw-capped bottle Nitrogen introduced using Carbazole Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4141-0 Blank S-4141-03 Price on request 56127 Cobalt (Co) Price on request MA9060 12.880 µS/cm conductivity solution (230mL) Price on request