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Purity

Our Grade 1 classification implies that we have seen no impurities when at least 0.1mg lipid has been run on a thin layer plate subsequently charred by a technique which reveals the presence of 0.001mg lipid. Grade 2 products are made either by simpler methods or are batches which just fail to pass our tests as Grade 1, but we never knowingly send out oxidised materials.

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A B C CEREBROSIDE (Mol wt approx 812) From bovine spinal cord, suplied as white powder. Grade 1 100mg D DIACYL GLYCEROL See Semi-Synthetic Lipids. DIGALACTOSYL DIGLYCERIDE See Plant leaf Lipids. DIOLEOYL GLYCEROL See Semi-Synthetic Lipids. DIOLEOYL PHOSPHATIDYL ETHANOLAMINE See Semi-Sythetic Lipids. E ETHANOLAMINE PHOSPHATIDES A Mixture of ethanolamine plasmalogen and phosphatidyl ethanolamine from bovine spinal cord. Grade 1 50mg Back to top F G GLYCEROPHOSPHORYLCHOLINE (GPC) From egg. Free GPC 500mg Cadmium chloride complex 500mg Back to top H I J K L LECITHINS (Mol wt approx 772-787) From bovine heart. A mixture of choline plasmogen and phosphatidyl choline. Ampoules of 100mg in colourless solution in chloroform:methanol. Grade 1 100mg From bovine spinal cord. Ampoules of 100mg in colourless solution in chloroform:methanol. Grade 1 100mg From egg yolk. Grade 1 prepared by chromatography on alumina and silicic acid columns. 5ml ampoules of colourless solution in chloroform:methanol. Grade 1 500mg Grade 2a prepared by chromatography on alumina. We have seen no sphingomyelin or lysolecithin on TLC of 100 micrograms but traces of fast-running impurities are present. 5ml ampoules in chloroform:methanol. Grade 2a 500mg Grade 2b contains impurities including sphingomyelin, lysolecithin and some pigments. 5ml ampoules in chloroform:methanol. Grade 2b 1g From soya bean. Rich in linoleic and linolenic acids. 5ml ampoules in chloroform:methanol. Grade 1 250mg LECITHIN, EGG, HYDROGENATED Mostly palmitic and stearic acids. 5ml ampoules in choroform:methanol. Grade 1 500mg LECITHIN MIXTURES Suitable for some liposome preparations, supplied in chloroform:methanol solution in 1ml ampoules containing: Mixture (Micromoles) Egg Lecithin Cholesterol Phosphatidic Acid Stearylamine Cetylphosphate a 42 12 - - - b 42 12 6 - - c 42 12 - 6 - d 42 12 - - 6 Mixture (Micromoles) Hydrogenated Egg Lecithin Cholesterol Phosphatidic Acid Stearylamine Cetylphosphate e 42 12 - - - f 42 12 6 - - g 42 12 - 6 - h 42 12 - - 6 (N.B All mixtures available at except b and f) LECITHIN SEMI-SYNTHETICS See Semi-Synthetic Lipids LYSOLECITHIN (Mol wt approx 508) Made from egg lecithin by the action of phospholipase A. Supplied as a white powder. We find no phospholipase activity. Grade 1 100mg LYSOPHOSPHATIDYL ETHANOLAMINE (Mol wt approx 463) Made from egg phosphatidyl ethanolamine by the action of phospholipase A. Supplied as a white powder. We find no phospholipase activity. Grade 1 25mg LYSOPHOSPHATIDYL GLYCEROL Grade 1 100mg Back to top M MONOGALACTOSYL DIGLYCERIDE See Plant leaf Lipids. N O P PHOSPHATIDIC ACID (Mol wt approx 648) Made from egg lecithin by the action of phospholipase D. Acid form in 5ml ampoules in chloroform:methanol. Grade 1 50mg Grade 2 (when available) 100mg PHOSPHATIDYL BUTANOL Made by the action of phospholipase D on egg lecithin in the presence of butanol. 5ml ampoules of colourless solution in chloroform:methanol 50mg PHOSPHATIDYL CHOLINE See Lecithins. PHOSPHATIDYL ETHANOL Made by the action of phospholipase D on egg lecithin in the presence of ethanol. 5ml ampoules of colourless solution in chloroform:methanol. 50mg PHOSPHATIDYL ETHANOLAMINE (Mol wt approx 744) From egg yolk. Procedure includes chromatography on silicic acid. 5ml ampoules of colourless solution in chloroform:methanol. Grade 1 100mg Grade 2 100mg PHOSPHATIDYL GLYCEROL (Mol wt approx 775) Made by the action of phospholipase D on egg lecithin in the presence of glycerol. 5ml ampoules of colourless solution in chloroform:methanol. Grade 1 50mg Grade 2 (when available) 50mg PHOSPHATIDYL GLYCEROL - From Plant Leaf See Plant Leaf Lipids. PHOSPHATIDYL INOSITOL (Mol wt approx 856) Prepared from wheat germ. Sodium salt form as a powder under nitrogen. Grade 1 50mg PHOSPHATIDYL SERINE (Mol wt approx 788) From bovine spinal cord. Monosodium salt form in 5ml ampoules of colourless solution in chloroform:methanol. Grade 1 100mg PLANT LEAF LIPIDS - DIGALACTOSYL DIGLYCERIDE (Mol wt approx 940) In chloroform:methanol solution. 50mg - MONOGALACTOSYL DIGLYCERIDE (Mol wt approx 778) In chloroform:methanol solution. 50mg - PHOSPHATIDYL GLYCEROL In chloroform:methanol solution. 25mg - SULPHOQUINOVOSYL DIGLYCERIDE In chloroform:methanol solution. 25mg Back to top Q R S SPHINGOMYELIN (Mol wt approx 749) From bovine spinal cord. Prepared chromatographically. Grade 1 50mg SULPHOQUINOVOSYL DIGLYCERIDE See Plant Leaf Lipids. SULFATIDE From bovine spinal cord. Sold as a white powder Grade 1 25mg Grade 1 100mg SEMI-SYNTHETIC LIPIDS All from egg. Diacyl glycerol 100mg Dilauroyl lecithin 100mg Dilinoleoyl lecithin 100mg Dimyristoyl lecithin 100mg Dioctanoyl lecithin 100mg Dioleoyl glycerol 100mg Dioleoyl lecithin 100mg Dioleoyl phosphatidyl ethanolamine 50mg Dipalmitoyl lecithin 100mg Dipalmitoyl phosphatidyl ethanolamine 50mg Distearoyl lecithin 100mg Back to top T U V W X Y Z Back to top