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- W2410708548 abstract "Raw progesterone material was tested for preparation of the Progesterone Reference Standard (Control 931). Analytical data obtained were as follows: melting point, 131.6 degrees C; infrared spectrum, the same as that of the JP Progesterone Reference Standard; optical rotation, [alpha]D20 = +181.1 degrees; thin-layer chromatography, no impurity was detected; high-performance liquid chromatography (HPLC), trace amounts of two impurities were detected; loss on drying, 0.23%; assay results, 99.4% by UV spectrophotometry in the JP XII and 100.5% by HPLC. Based on the above findings, the raw material was authorized as the JP Progesterone Reference Standard (Control 931)." @default.
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- W2410708548 date "1994-01-01" @default.
- W2410708548 modified "2023-09-23" @default.
- W2410708548 title "[The Progesterone Reference Standard (Control 931) of the National Institute of Health Sciences]." @default.
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