SHANGHAI FINE CHEMICALS CO., LTD.
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TESTING ITEMS SPECIFICATION
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CHARACETRS:
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YELLOW CRYSTALLINE POWDER
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IDENTIFICATION:
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HPLC
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SULPHURIC ACID REACTION A YELLOW COLOUR DEVELOPS
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IT GIVES REACTION OF CHLORIDES
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PH
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2.0~3.0
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SPECIFIC ABSORBANCE
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AT 349nm E(1%) 300~355
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SPECIFIC OPTICAL ROTATION
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-105 ~ -120°
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HEAVY METALS:
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≤50PPM
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LIGHT-ABSORBING IMPURITIES
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AT 490nm ≤0.07
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RELATED SUBSTANCES
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6-EPIDOXYCYCLINE ≤2.0%
METACYCLINE ≤2.0%
4-EPIDOXYCYCLINE ≤0.5% (EP5)
4-EPI-6-EPIDOXYCYCLINE ≤0.5% (EP5)
OXYTETRACYCLINE ≤0.5% (EP5)
ANY OTHER IMPURITY ≤0.5%
NOT IDENTIFIED IMPURITIES ≤0.1% (EP5)
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ETHANOL
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4.3~6.0% (m/m)
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SULPHATED ASH
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≤0.4%
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WATER
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1.4~2.8%
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ASSAY
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95.0~102.0%( C22H25ClN2O8) BASED ON ANHYDROUS,ETHANOL-FREE SUBSTANCE
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