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Shijiazhuang Jirong Pharmaceutical Co., Ltd.
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L-Leucine

CAS No. : 61-90-5
Molecular formular: C6H13NO2
Molecular weight: 131.17
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Product description
Parameters

Item

Specification

Result

Appearance

White or almost white crystalline powder or  shiny flakes.

White crystalline powder

Solubility

Sparingly soluble in water, practically insoluble in alcohol.It dissolves in dilute mineral acids and in dilute solutions of alkali hydroxides.

conforms

Identification test (A,C)

Up to the standard

conforms

Appearance of solution

Clarity of solution:5% water solution should be clear.

conforms

Colour of solution:5% water solution should be not more intensively coloured than reference solution BY6.

conforms

Specific optical rotation

+14.5° to +16.5°

+15.2°

Assay

98.5-101.0%

99.5%

Chlorides

≤200ppm

<200ppm

Sulphates

≤300ppm

<300ppm

Ammonium

≤200ppm

<200ppm

Iron

≤10ppm

<10ppm

Heavy metals

≤10ppm

<10ppm

Loss on drying

≤0.5%

0.1%

Sulphated ash

≤0.1%

0.05%

Ninhydrin-positive substances (TLC)

Up to the standard

conforms

Result: The product conforms to the standard of EP6.0

 


 

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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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