Vitamin B5

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Appearance	White powder
Identification Infrared absorption 197K	Concordant with reference spectrum
Identification A solution (1 in 20) responds to the tests for calcium	Conform to USP30
Specific optical rotation	+25.0°~+27.5°
Alkalinity	No pink color is produced within 5 seconds
Loss on drying	Not more than 5.0%
Heavy metals	Not more than 0.002%
Ordinary impurities	Not more than 1.0%
Organic volatile impurities	Meet the requirements
Nitrogen content	5.7%~6.0%
Content of calcium	8.2~8.6%
Assay	Conform to USP30

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