Malic acid CAS:6915-15-7

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COA:Downl oad MSDS:Downl oad

Malic acid CAS:6915-15-7

Malic acid CAS:6915-15-7 Basic information

Product Name: Malic acid
Synonyms: alpha-Hydroxysuccinic acid;alpha-hydroxysuccinicacid;Butanedioic acid, hydroxy-;commonmalicacid;Deoxytetraric acid;deoxytetraricacid;femanumber2655;hydroxy-butanedioicaci
CAS: 6915-15-7
MF: C4H6O5
MW: 134.09
EINECS: 230-022-8
Product Categories: Building Blocks;C1 to C5;Carbonyl Compounds;Carboxylic Acids;Chemical Synthesis;Organic Building Blocks;Aliphatics;Chiral Reagents;Isotope Labelled Compounds;Food & Flavor Additives;Food additive;NULL
Mol File: 6915-15-7.mol

Malic acid CAS:6915-15-7 Chemical Properties

Melting point: 131-133 °C(lit.)
Boiling point: 167.16°C (rough estimate)
form: neat
storage temp.: 2-8°C
Water Solubility: 558 g/L (20 ºC)
refractive index: 1.3920 (estimate)
pka: 3.4(at 25℃)
BRN: 1723539
Merck: 14,5707

分析项目

ITEM

技术指标

STANDARD

实测结果

RESULTS

色泽

Color

白色或类白色

White

符合规定

Qualified

气味

Smell

特殊的酸味

Special sour taste

符合规定

Qualified

状态

Form

结晶或结晶性粉末

Crystalline or crystalline powder

符合规定

Qualified

DL-苹果酸(以C4H6O5计)

DL-Malic acidC4H6O5

99%-100.5%

99.7%

比旋光度(20°C),

(o)•dm2•kg-1

Specific rotation (20°C),

(o)•dm2•kg-1

-0.1-+0.1

0

灼烧残渣

Ignition residue

0.1%

0. 04%

,mg/kg

As,mg/kg

2

符合规定

Qualified

, mg/kg

Pb, mg/kg

2

0.02

富马酸

Fumaric acid

1%

0.04

马来酸

Maleic acid

0.05%

0,008

水不溶物

Water insoluble matter

0.1%

0.05

结论

Conclusion

经检验,该批产品符合GB25544-2010标准要求,合格

After inspection, the batch of products meet the requirements of GB25544-2010 and are qualified.


UsesMalic acid, HOOCCH(OH).CH2COOH, also known as hydroxysuccinic acid, is a colorless solid. It is soluble in water and alcohol. Malic acid exists in two optically active forms and a racemic mixture. It is used in medicine and found in apples and other fruits.
The naturally occuring isomer is the L-form which has been found in apples and many other fruits and plants. Selective α-amino protecting reagent for amino acid derivatives. Versatile synthon for the preparation of chiral compounds including κ-opioid rece


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