1.
Eisei Shikenjo Hokoku
; (109): 151-3, 1991.
Artigo
em Japonês
| MEDLINE
| ID: mdl-1364384
RESUMO
The raw material of epitiostanol was examined for preparation of "Epitiostanol Reference Standard". Analytical results for the sample were as follows: melting point 130.7 degrees C (decomposition); UV spectrum indicates absorption maximum at 263 nm in ethanol; IR spectrum indicates specific absorption at 2920, 1383, 1056 and 590 cm-1; optical rotation [alpha]20D+ 24.4 degrees; no impurity was found by TLC, but a small amount of one was found by HPLC analysis and the purity is assumed to be 99.5%; water content 1.52%. Based on the results, the present raw material was authorized to be the Reference Standard of the National Institute of Hygienic Sciences.