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Azithromycin Dihyrate (CAS: 83905-01-5) buy in Taizhou
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Azithromycin Dihyrate (CAS: 83905-01-5)

Azithromycin Dihyrate (CAS: 83905-01-5)

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Description
Chemical name: 11-(4-dimethylamino-3-hydroxy-6-methyl-oxan-2-yl)oxy-2-ethyl-3, 4, 10-tr; 1-Oxa-6-azacyclopentadecan-15-one, 13-((2, 6-dideoxy-3-C-methyl-1-3-O-methyl-alpha-L-ribo-hexopyranosyl)-oxy)-2-ethyl-3, 4, 10-trihydroxy-3, 5, 6, 8, 10, 12, 14-heptamethyl-11-((3, 4, 6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl)oxy); .

Molecular formula: C38H72N2O12
Quality standard: USP26/30/34, CP2010
Appearance: White or off-white crystalline powder.
Assay: Not less than 945 Azithromycin unit/1mg (anhydrous).
Application: It is clinically used in the therapy of infections of respiratory tract, skin and soft tissue caused by microorganisms.
Storage: Sealed tightly, kept in cool and dry place.
Valid period: 2 years
Product Name Azithromycin
dihydrate
Specification 25kg/drum
Batch No. 101205 Batch Quantity 100kg
Manu. Date 2010.12.08 Report Date 2010.12.10
Expiry Date 2012.11 Testing Basis USP30
Items Requirements Results
Description A white or almost white powder Complies
Solubility Practically insoluble in water, freely solube in ethanol and in methylene chloride Complies
Identification
IP spectrum Conforms to azithromycin RS Complies
Rt HPLC Conforms to azithromycin RS Complies
Tests
pH 9.0~11.0 9.6
Specific rotation -45° ~ -49° -47.8°
Crystallinity Meets the requirement Meets the requirement
Limit of related substances (1)Not more than 0.3% of desosaminy lazithromycin, 0.7% of N-demethyl azithromycin Complies
(2)any other individual related substance is not more than 1.0% Complies
(3)the sum of all related substances is not more than 3.0% Complies
Water 4.0%~5.0% 4.5%
Loss on drying 4.0%~6.5% 5.4%
Residue on ignition Not more than 0.3% complies
Heavy metals Not more than 25ppm complies
Assay 945μ g/mg~1030μ g/mg 975μ g/mg
Conclusion The above product conforms to USP30
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Azithromycin Dihyrate (CAS: 83905-01-5)
Azithromycin Dihyrate (CAS: 83905-01-5)
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