L-Leucine
Molecular formular: C6H13NO2
Molecular weight: 131.17
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 |
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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