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| D-Biotin |
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| D-Biotin |
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| 58-85-5 |
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Specification: EP4
Appearance: white crystalline powder or colorless crystals.
IR: to match with the reference IR spectrum.
TLC: the principal spot in the chromatogram obtained with test solution (b) is similar in position and size to the principal spot in the chromatogram obtained with reference solution (a).
Color reaction: the bromine water is decolorized.
Appearance of solution: clear and colorless.
Specific optical substances: to conform
Heavy metals: not more than 10ppm
Loss on drying: not more than 1.0%
Sulfate ash: not more than 0.1%
Assay: 98.5 ~ 101.0%
Additional terms:
Tetrahydrofuran: not more than 720 ppm
Toluene: not more than 890ppm
Cyclohexane: not more than 3880ppm
Acetone: not more than 5000ppm
Methanol: not more than 3000ppm
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Specification: EP4
Appearance: white crystalline powder or colorless crystals.
IR: to match with the reference IR spectrum.
TLC: the principal spot in the chromatogram obtained with test solution (b) is similar in position and size to the principal spot in the chromatogram obtained with reference solution (a).
Color reaction: the bromine water is decolorized.
Appearance of solution: clear and colorless.
Specific optical substances: to conform
Heavy metals: not more than 10ppm
Loss on drying: not more than 1.0%
Sulfate ash: not more than 0.1%
Assay: 98.5 ~ 101.0%
Additional terms:
Tetrahydrofuran: not more than 720 ppm
Toluene: not more than 890ppm
Cyclohexane: not more than 3880ppm
Acetone: not more than 5000ppm
Methanol: not more than 3000ppm
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