title: [dl-Camphor Reference Standard (Control 951) of the National Institute of Health Sciences].
abstract: The raw material of dl-camphor was examined for the preparation of the "dl-Camphor Reference Standard". Analytical data obtained are as follows: ultraviolet spectrum, lambda max = 290 nm; infrared spectrum, the same as that of the present JP Camphor Reference Standard; melting point, 179.6 degrees C; purity test by gas-chromatography (GC), three kinds of impurities were detected; assay by GC, 99.0%. Based on the above results, the candidate raw material was authorized as the JP Reference Standard (Control 951).
authors.forename: A
authors.initials: A
authors.lastname: Kitajima
authors.forename: K
authors.initials: K
authors.lastname: Maekawa
authors.forename: K
authors.initials: K
authors.lastname: Yoshi
authors.forename: H
authors.initials: H
authors.lastname: Komatsu
authors.forename: T
authors.initials: T
authors.lastname: Tanimoto
authors.forename: S
authors.initials: S
authors.lastname: Okada
mesh_terms: D002164:Camphor / Q000032:analysis / Q000592:standards*; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D006077:Government Agencies; D007564:Japan; D010602:Pharmacopoeias as Topic / Q000592:standards; D012015:Reference Standards
chemical_list: D002164:Camphor