Vitamin H CAS No.58-85-5 / Cat No.EBD2202242
VH
Vitamin H
D-Biotin
Biotin
Vitamin B7
Hexahydro-2-oxo-1H-thieno[3,4-d]imidazole-4-pentanoic acid
Vitamin H (D-Biotin)
D-Biotin pure
VH
5-(2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid
5-[(3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]pentanoic acid
5-[(3aR,4S,6aS)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]pentanoic acid
5-[(3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]pentanoate
5-[(3aS,4S,6aS)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]pentanoate
5-[(3aR,4S,6aS)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]pentanoate
5-[(3aR,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]pentanoate
VH
BIOS H
Biotin(D-)
D-biotin(VH)
Properties
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Appearance:
white powder
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Density:
1.267 g/cm3
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Melting point:
231-233 °C(lit.)
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Boiling point:
573.6 °C at 760 mmHg
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Flashing point:
300.7 °C
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Storage temperature:
2-8°C
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Coefficient of refraction:
90.5 ° (C=2, 0.1mol/L NaOH)
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Optical rotation:
89 º (c=1, 0.1N NaOH)
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Solubility:
H2O: 0.2 mg/mL Solubility increases with addition of 1 N NaOH.
Safety Information
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Signal words:
None
NMR Spectrum
Prediction： IH NMR (DMSO-d6):delta = 1.30-1.63 (m, 6H, 3xCH2), 2.20 (t, 2H, -CH2CO2H), 2.58 (d, IH, C6ce- H), 2.82 (dd, IH, C6beta-H), 3.07-3.12 (m, IH, C4/3-H), 4.11-4.15 (m, IH, C3a-H), 4.28-4.32 (m, IH, C6a-H), 6.34 (s, IH, Nl-H), 6.41 (s, IH, N3-H), 11.96 (br s, IH, -CO2H) ppm.
1H NMR
13C NMR
