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|Characteristics||a white crystalline powder|
|Specific optical rotation||+103°~+107°(BP)|
|Reducing substances||test pass|
Usage: As pharmaceutical preparations, for the body of vitamin D supplement, preventable and treatment of vitamin D deficiency caused by muscle twitching, osteoporosis, rickets, dental caries and hypoparathyroidism etc, its physiological role is to maintain normal calcium and phosphorus metabolism, promote them to the bone and tissues.