Vitamin B5

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描述
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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