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- W2407628165 abstract "The raw material for riboflavin was tested for preparation of the Riboflavin Reference Standard (Control 921). Analytical data obtained were as follows: melting point, 283.8 degrees C (decomposition); specific absorbance, E1%1 cm = 852 (267 nm), 275 (373 nm), 325 (446 nm); infrared spectrum, the same as that of JP Riboflavin Reference Standard; optical rotation [alpha]20D = 138.5 degrees; thin-layer chromatography, no impurities were detected up to 6 micrograms; high-performance liquid chromatography, a small amount of 9 impurities were detected; loss on drying, 0.16%; assay, 100.3% by spectrophotometry. Based on the above results, the raw material was authorized as the Japanese Pharmacopoeia Reference Standard (Control 921)." @default.
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- W2407628165 date "1993-01-01" @default.
- W2407628165 modified "2023-09-23" @default.
- W2407628165 title "[Riboflavin Reference Standard (Control 921) of National Institute of Health Sciences]." @default.
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