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Sales: |
1615 Jiangong Mansion, 20 Wensan Rd., Hangzhou City, Zhejiang, China. |
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Contact: |
Mr. Liu 13395817662 |
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Fax: |
0086-571---88391864 |
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Tel: |
0086-571—88391860 |
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0086-571—88391822 |
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0086-571—87515357 |
E-mail: |
liujl@life-pharm.com |
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L-Methyldopa |
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STRUCTURE FORMULA: |
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MOLECULAR FORMULAR: |
C10H13NO4=211.21 |
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PHYSICAL PROPERTY: |
| White crystals, mp/ 306-307°C(decomp).
Solvable in hot water, dilute acidic and basic
solution, slightly solvable in alcohol, acetone,
and cold water. |
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MAIN USAGE: |
| L-methyl dopa is a kind of acceptor antagonist
used in cure of hypertension. |
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TECHNICAL STANDARD: |
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Appearance: |
offwhite to white crystal |
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Mp: |
306-307(decompose) |
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Specific Rotation: |
-251-(-281) |
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Content(%): |
98.0-101.0%, dry base |
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Loss on drying: |
10.0-13.0% |
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Ignition Residue(%): |
≤0.1 |
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Organic Volatile Impurities: |
lower than standard |
Heavy
Metals(as Pb): |
≤10ppM |
Acidity: |
≤0.5ml |
3-methoxy
methyldopa, Max: |
lower than standard, chromatographic
method |
PACKING: |
25KG paper barrel, sealed in
double plastic bags. |
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