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Shijiazhuang Jirong Pharmaceutical Co., Ltd.
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L-Glutamic acid

CAS No.: 56-86-0
Molecular formular: C5H9NO4
Molecular weight: 147.13
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Product description
Parameters

L-Glutamic acid

AJI97

EP6.0

Description

White crystals or crystalline powder

A white or almost white, crystalline powder or colourless crystals.

Solubility

/

Freely soluble in boiling water, slightly soluble in cold water, practically insoluble in acetic acid, in acetone and in alcohol

Identification

Conform

Conforms

Appearance of solution

/

Clarity of solution:10% water solution should be clear

 

 

Colour of solution:10% water solution should be colourless

Assay

98.5%~100.5%

98.5~100.5%

pH

3.0~3.5

/

Transmittance

≥98.0%

/

Loss on drying

≤0.10%

≤0.5%

Residue on ignition

≤0.10%

≤0.1%

Chloride

≤0.020%

≤200ppm

Heavy Metals

≤10ppm

≤10ppm

Iron

≤10ppm

≤10ppm

Sulfate

≤0.020%

≤300ppm

Arsenic

≤1ppm

/

Ammonium

≤0.02%

≤200ppm

Other amino acids

Conforms

/

Pyrogen

Conforms

/

Ninhydrin-positive substances (TLC)

/

Conforms

Specific Rotation

+31.5°~ +32.4°

+30.5° to +32.5°

 


 

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Shijiazhuang Jirong Pharmaceutical Co., Ltd.

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The No.8 of north of Huagong road,Circulation Chemical Industrial Zone,Shijiazhuang,Hebei,China

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