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L-Aspartic acid CAS 56-84-8


L-Aspartic acid is white crystal or crystalline powder, slightly acidic taste. Soluble in boiling water, slightly soluble in water at 25 ℃ (0.5%), soluble in dilute acid and sodium hydroxide solution, insoluble in ethanol, ether, heated to 270 ℃ decomposition, isoelectric point of 2.77, and its specific rotation is related to the solvent dissolved. In acid solution it is right-spin, in alkali solution it is left-spin, and in aqueous solution it is right-spin.
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  • 56-84-8

  • bosschemical

  • 56-84-8

L-Aspartic acid 

CAS 56-84-8

Alias:L-Aspartic acidUSP,            98.5-101.5% (Titration: anhydrous basis);(s)-butanedioicaci;alpha-Aminosuccinic acid;Asparagic acid;asparagicacid;Asparaginic acid;asparaginicacid;asparaginsaeure

Molecular formula:C4H7NO4

Molecular weight:133.1

Structural formula:

L-天门冬氨酸 结构式


1.Performance and use

L-Aspartic acid is used as an electrolyte supplement in amino acid infusion, inorganic ion supplements such as potassium and calcium, and fatigue recovery agents.

L-Aspartic acid can be used as ammonia detoxifier, liver function promoter, fatigue recovery agent and other pharmaceuticals, can be made of sodium L-aspartate food additives and a variety of cool drinks additives, but also as a biochemical reagent, culture medium and intermediates of organic synthesis.

2.Technical indicators

ITEM


INSPECTION CRITERION

RESULT

Appearance


White crystals or crystalline powder

Conforms


Specific rotation[α]D20

+24.0°~+26.0°

+25.0°

Chloride(Cl)

≤0.020%

<0.020%


Ammonium(NH4)

≤0.02%

<0.02%

Sulfate(SO4)

≤0.030%

<0.030%

Iron(Fe)

≤10ppm

<10ppm


Heavy metals(Pb)

≤10ppm

<10ppm


Chromatographic purity


Not more than 0.5% of any individual

impurity is found;

Not more than 2.0% of total impurities is

found.


Any individual impurity<0.5%;


Total impurities

<2.0%

Loss on drying

≤0.50%

0.03%


Residue on ignition

≤0.10%

0.07%

Assay

98.5%~101.5%

99.3%


3. Packaging and storage  

Packaging specification: 190kg/drum,which can also be determined according to user needs

During transportation, it is necessary to protect against sunlight, rain, and high temperatures.

The product should be stored in a cool, dark, ventilated place, away from sources of fire.

4. Safety protection

Pay attention to labor protection when handling it and avoid contact with skin, eyes, etc.

After contact, rinse immediately with plenty of water




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