| Customization: | Available |
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| Storage Method: | Normal |
| Shelf Life: | >12 Months |
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Malic Acid is a naturally occurring organic acid. Its chemical name is hydroxysuccinic acid. Molecular form C4H6O5, molecular weight 134.09. Its CAS number is divided into two kinds according to different optical rotation:
L-(-) -malic acid: CAS number 97-67-6 (left-handed, naturally occurring form) 414
Dl-malic acid: CAS No. 6915-15-7 (racemic mixture, synthetic form) 5814
Malic acid is widely used in food, medicine, chemical industry and other fields, and has the functions of acid adjustment, anti-oxidation, chelating metal ions and so on.
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L Malic Acid
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DL Malic Acid
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Item
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Standard
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Item
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Standard
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Assay(C4H6O5):
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≥99.0%
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Assay( C4H6O5):
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99.0%~100.5%
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Specific Rotation[α]D20ºC:
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-1.6°~-2.6°
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Specific Rotation[α]D25ºC
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-0.10°~+0.10°
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Residue on Ignition:
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≤0.10%
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Arsenic(as As):
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≤2mg/kg
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Clarity test:
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Qualified
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Lead(as Pb):
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≤2mg/kg
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Sulfate (as SO4):
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≤0.02%
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Residue on Ignition:
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≤0.1%
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Chloride(as Cl):
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≤0.004%
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Fumaric acid:
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≤1.0%
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Fumaric acid:
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≤0.5%
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Maleic acid:
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≤0.05%
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Maleic acid:
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≤0.05%
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Water insoluble matter:
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≤0.1%
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Application field
Food Industry:
As an acidifier (E296), it is used in beverages, sweets, jams, etc., to give natural fruit acid flavour14.
Alternative citric acid is used in effervescent tablets and mouthwashes to mask bitterness and enhance mouthfeel 14.
Medical field:
Intermediates for the synthesis of chiral compounds (e.g., alpha-amino protective reagents) 4.
Excipients for the treatment of liver disorders, burns and ulcers can be taken orally or injected 14.
Chemical & Daily Chemicals:
Production of polyester resin, fluorescent whitening agent, chelating agent, etc. 414.
Used in cosmetics as a pH regulator and antioxidant.
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