title: [The Cyclandelate Reference Standard (Control 931) of the National Institute of Health Sciences].
abstract: Raw cyclandelate material was tested for preparation of the "Cyclandelate Reference Standard (Control 931)". Analytical data obtained were as follows: melting point, 57.4 degrees C; ultraviolet spectrum, lambdamax = 252.0, 258.1 and 264.1 nm and E 1cm 1% = 5.85 (252.0 nm), 6.95 (258.1 nm), 5.30 (264.1 nm), respectively; infrared spectrum, the same as that of the JP Cyclandelate Reference Standard; thin-layer chromatography, no impurities were detected up to 1000 micro g; high-performance liquid chromatography (HPLC), no impurities were detected; loss on drying, 0.03%; assay result, 101.4% by HPLC. Based on the above findings, the raw material was authorized as the JP Cyclandelate Reference Standard (Control 931).
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: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003495:Cyclandelate / Q000032:analysis / Q000592:standards*; D006077:Government Agencies; D007564:Japan; D010602:Pharmacopoeias as Topic / Q000592:standards
chemical_list: D003495:Cyclandelate