' WELLCOME ' BRAND CHEMICALS AND GALENICALS 'Wellcome' Standardscontinued Product Cocaine Hydrochloride ... Cotarnine Hydrochloride Emetine (Pure Alkaloid) Ether (Pure) ......... Homatropine (Pure Alkaloid) ... Homatropine Hydrobromide,B- P- Homatropine Methylbromide ... Hydrastine (Pure Alkaloid) Hydrastine Hydrochloride Hyoscyamine (Pure Alkaloid) ... Hyoscyamine Sulphate ... Iron Arsenate Soluble ... Iron and Quinine Citrate, B.P.... Iron Glycerophosphate ... Iron Hypophosphite Leptandrin Magnesium Glycerophosphate ... Manganese Hypophosphite Mercury Iodide Yellow (Pure Mercurous Iodide) Mercury Subchloride, B.P. (Calomel) Morphine Tartrate, B.P. Physostigmine (Pure Alkaloid)... Physostigmine Hydrobromide (Eserine Hydrobromide) Physostigmine Salicylate (Eserine Salicylate) Physostigmine Sulphate (Eserine Sulphate), B.P. Pilocarpine Hydrochloride Standard M.p. 2oi°-2O3°; answers the most stringent permanganate test Lemon-yellow crystals M.p. 68°-69° Sp. Gr. 0720-0722 at 15-5° ; b.p. 34-5°. Answers all other recognised tests M.p. 99°-ioo° M.p. 2i7°-2i8° ; m.p. of base from salt, 99°-ioo° M.p. i8oo-i85° M.p. 1330 White and yields pure alkaloid M.p. IO7°-IO9° ; [a]D-2i° M.p. 2O5°-2o6° Contains iron and arsenic equivalent to 34-35 per cent, of anhydrous ferric arsenate Limit of sulphate o-i per cent, of SO:; Readily soluble in warm water ; contains about 16 per cent, of iron as ferric glycerophosphate Readily soluble in water ; contains about 12 per cent, of iron Free from water-soluble extractive Crystalline salt ; readily soluble in cold water Contains not less than 99-5 per cent, of Mn P.2H4O4,H2O Entirely free from mercuric salts and uncombined mercury Uniform micro-physical characters Complete and rapid solubility Crystals ; m.p. io5°-io6° M.p. 224°-226° M.p. i86c-i87° M.p. I45°-I46° (after drying) M.p. 2O3°-2O4°