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1.圖片
2.分析單（詳細說明）
Name: Prothionamide Batch No: 2005-08-28
Molecular Formula: C9H12N2 SMFG. Date: Aug.28, 2005
Molecular Weight：180.28 EXP. Date: Aug.27, 2009
Quantity:Sample
Structural Formula：Structural Formula：
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Item of testing |
Standard(BP88) |
Result |
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Appearance |
Yellow crystals or crystalline powder |
Complies |
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Solubility |
Practically insoluble in water, soluble in 30 parts of ethanol (96％)and in 16 parts of methanol; slightly soluble in chloroform and in ether |
Complies |
Identification |
A. The infra-red absorption spectrum is concordant with the reference spectrum of prothionamide CRS. |
Complies |
B. A max imum only at 291 nm, the absorbance is about 0.78. |
Complies |
C. Heat 0.1g with 5ml of 1M hydrochloric acid. A gas is evolved which turns lead acetate paper black. |
Complies |
Acidity |
Not more than 0.2ml of 0.1M sodium hydroxide is required to change the color of the indicator to red |
0.11ml |
Melting Point |
140.0-143.0℃ |
141.8℃ |
Related Substances |
Any secondary spot in the chromatogram obtained with solution (1) is not more intense than the spot in the chromatogram obtained with solution (2). |
Complies |
Heavy Metals |
Not more than 20ppm |
Complies |
Sulphated Ash |
Not more than 0.1％ |
0.05％ |
Loss on Drying |
Not more than 0.5％ dried at 105℃ for 3 hours |
0.22％ |
Active Substance
Content |
99.0-101.0％ |
99.90％ |
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Conclusion |
CONFORM WITH STANDARD |
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Date of
Laboratory Test |
Aug.30, 2005 |
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Laboratory
technician |
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Checker |
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