| Specifications: |
Cas No.：2058-46-0
Standard：EP7.8
Synonym: 5-Hydroxytetracycline hydrochloride; [4S-(4alpha,4aalpha,5alpha,5aalpha,6beta,12aalpha)]-4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,6,10,12,12a-hexahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide monohydrochloride
Molecular Formula: C22H24N2O9.HCl
Molecular Weight: 496.90
Molecular Structure: 
EINECS: 218-161-2
Specification:
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Item
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Standard
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Appearance
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Yellow Powder
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Identification(first indentification:C.D
Second identification:A.B.C)
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A:Thin-layer chromatography
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B.as description of EP7.8
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C.Reaction of chlorides
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D.HPLC identification
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PH
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2.3-3.3
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Specific Optocal Rotation
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-235 to -250o
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Absorbance
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≤0.40
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Heavy Metals
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≤50ppm
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Water
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≤2.0%
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Sulphated Ash
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≤0.5%
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Impurity A
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≤4.0%
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Impurity B
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≤1.0%
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Impurity E
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≤1.0%
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Impurity J
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≤0.3%
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Impurity D
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≤0.2%
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Impurity G
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≤0.2%
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Impurity H
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≤0.2%
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Impurity L
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≤0.2%
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Impurity K
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≤0.15%
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Unspecified Impurities
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≤0.10%
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Sum of impurities other Than A
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≤2.0%
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CTC.HCL(anhydrous substance)
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≥89.5%
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TC.HCL(anhydrous substance)
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≤6.0%
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CTC.HCL+TC.HCL(anhydrous substance)
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94.5% to 102.0%
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Package: 25kg drum or according to the requirements of customers.
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