Kokuritsu Iyakuhin Shokuhin Eisei Kenkyujo hokoku = Bulletin of National Institute of Health Sciences 1999-01-01

[Lanatoside C Reference Standard (Control 981) of National Institute of Health Sciences].

H Saito, W Kawaguchi, M Iwata, K Maekawa, T Tanimoto, S Okada

Index: Kokuritsu Iyakuhin Shokuhin Eisei Kenkyusho. Hokoku. (117) , 192-4, (1999)

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Abstract

The raw material of lanatoside C was examined for preparation of the "Lanatoside C Reference Standard". The analytical data obtained were: melting point, 247.4 degree C; optical rotation, [alpha]20(D) = + 34.0 degree, loss on drying, 6.93%; infrared spectrum, the same as that of the Lanatoside C Reference Standard (Control 784); thin-layer chromatography, two impurities detected; high-performance liquid chromatography, several impurities detected and the total amount estimated to be about 1.26%; assay by spectrophotometry, 103.0%. Based on the above results, the candidate material was authorized as the Lanatoside C Reference Standard (Control 981) of the National Institute of Health Sciences.