title: [Ergocalciferol Reference Standard (Control 921) of National Institute of Health Sciences].
abstract: The raw material for ergocalciferol was tested for preparation of the "Ergocalciferol Reference Standard (Control 921)". Analytical data obtained were as follows: melting point, 118.1 degrees C; UV and infrared spectra, the same as those for the JP Ergocalciferol Reference Standard; specific absorbance, E1%1 cm = 457.5 (265 nm); thin-layer chromatography and high-performance liquid chromatography (HPLC), no impurities were detected; assay, 101.0% by HPLC. Based on the above results, the raw material was authorized as the Japanese Pharmacopoeia Reference Standard (Control 921).
authors.forename: W
authors.initials: W
authors.lastname: Izumi
authors.forename: A
authors.initials: A
authors.lastname: Kitajima
authors.forename: K
authors.initials: K
authors.lastname: Yoshii
authors.forename: H
authors.initials: H
authors.lastname: Komatsu
authors.forename: S
authors.initials: S
authors.lastname: Ishimitsu
authors.forename: S
authors.initials: S
authors.lastname: Okada
mesh_terms: D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D004872:Ergocalciferols / Q000302:isolation & purification / Q000592:standards*; D006077:Government Agencies; D006296:Health Services; D007564:Japan; D010602:Pharmacopoeias as Topic
chemical_list: D004872:Ergocalciferols