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[Ergocalciferol Reference Standard (Control 901) of the National Institute of Hygienic Sciences].

Authors
Type
Published Article
Journal
Eisei Shikenjo hōkoku. Bulletin of National Institute of Hygienic Sciences
Publication Date
Issue
109
Pages
139–142
Identifiers
PMID: 1364380
Source
Medline

Abstract

Ergocalciferol Reference Standard for the Japanese Pharmacopoeia (JP RS) was prepared. The following analytical data were obtained: melting point 118.4 degrees C; UV and IR spectra were in agreement with both of the previous JP RS and USP RS of ergocalciferol; absorptivity at 265nm E1%lcm = 467; optical rotation [alpha]20D = 103 degrees; no impurities were detected by TLC and HPLC analyses; assay 100.1% by HPLC against the USP RS. Based on the above results, the raw material was authorized as the Reference Standard of the National Institute of Hygienic Sciences.

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