DESCRIPTION
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White crystals or crystalline powder, fairly hygroscopic, dissolving easily in water and alcohol.
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Chemical Name
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L-hydroxy butanedioic acid
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Molecular Formula
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C4H6O5
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Structural Formula
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Molecular Weight
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134.09
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SPECIFICATION
(FCCIV,1996) |
Assay(as C4H6O5)
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99.0% Min
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Clarity
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Clear
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Specific Rotation
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-1.6 ~ -2.6
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Arsenic(as As2O3)
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2.0mg/kg Max
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Oxide
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Qualified
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Heavy Metals(as Pb)
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20mg/kg Max
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Residue on Ignition
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0.05% Max
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Chloride[Cl-]
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0.004% Max
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Sulfate
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0.03% Max
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Fumaric Acid
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0.1% Max
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Maleic Acid
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0.05% Max
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MAIN FUNCTION AND PURPOSE
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As an acidulant, L-Malic acid is especially suitable for jelly and foodstuff containing fruit ingredient. It can keep the natural color of juice. Used in healthy drinks, it can resist fatigue and protect liver, kidney and heart. L-Malic acid can enhance pharmaceutical stability and improve pharmaceutical absorption. It can be added into composite amino acid injection, directly participating the metabolic cycle of organism-Krebs cycle. It can reduce the metabolic loss of amino acid and can compensate hypohepatia, cure uremia and hypertension, and weaken the damage of anticancer drug to normoblasts. It is also used in skin disinfector, air depurative and deodorizer.
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PACKING
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25KG net in Cardboard Drum with inner vacuum PE bag, 13.5MT/20FCL.
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STORAGE
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Kept airtightly in a light-proof, dry and cool place.
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DESCRIPTION
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white crystals or white crystalline powder, soluble in water, alcohol and other organic solvent. Its aqueous solution is acidic.
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Chemical Name
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R-hydroxy butanedioic acid
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Molecular Formula
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C4H6O5
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Structural Formula
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||
Molecular Weight
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134.09
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SPECIFICATION
(FCCIV,1996) |
Assay(as C4H6O5)
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99.0%~100.5%
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Optical purity
(e.e%,Chiral HPLC)
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98.0% Min
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Specific Rotation (c=8.5,H2O)
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+1.6 ~+2.6
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Arsenic(As2O3)
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2.0mg/kg Max
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Heavy Metal(Pb)
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20mg/kg Max
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Residue On Ignition
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0.1% Max
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Chloride[Cl-]
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0.01% Max
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Sulfate
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0.04% Max
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Fumaric Acid
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0.5% Max
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Maleic Acid
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0.05% Max
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MAIN FUNCTION AND PURPOSE
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It is an important four-carbon atoms chiral pool. It is mainly used in many fields including chiral pharmaceuticals, chiral additives and chiral auxiliaries. It is used as chiral pool of chiral synthesis in pharmaceutical and food industries. As an optically active organic acid, it is insubstitutable in asymmetry synthesis of some chiral compounds.
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PACKING
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25kg net weight in cardboard drum or according to customer requirements
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STORAGE
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Kept airtightly in a light-proof, dry and cool place.
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