D-Biotin, also called Vitamin H, is a colorless, water-soluble member of the group of B-vitamins. Formerly it was known as vitamin H or coenzyme R. It has many benefits for the hair, skin, and nails.
| Form |
White powder |
| MF |
C10H16N2O3S |
| MW | 244.31 |
| Melting point |
231-233 °C(lit.) |
| Boiling point |
573.6±35.0 °C(Predicted) |
| Density |
1.2693 (rough estimate) |
| Refractive index |
90.5 ° (C=2, 0.1mol/L NaOH) |
| Pka |
4.74±0.10(Predicted) |
| Storage temp. |
-20°C |
|
ITEM |
STANDARD |
|
Appearance |
White or whitelike powder |
|
Assay |
>=2.0% |
|
Loss on Drying |
=<6.0% |
|
Seive Analysis |
>=95% through No. 20 (US) |
|
WATER (%) |
=<1.5 TEST METHOD Karl Fisher |
|
Heavy metals |
=<10mg/kg |
|
Arsenic |
=<2mg/kg |
|
Pb |
=<2mg/kg |
|
Cadmium |
=<2mg/kg |
|
Mercury |
=<2mg/kg |
As a feed additive, it is mainly used for poultry and sow feed. Usually the premixed mass fraction is 1%-2%.
It is nutritional supplement. According to China GB2760-90 regulations, it could be used as a food industry as a processing aid. It has physiological functions to prevent skin diseases and promote lipid metabolism and so on.
It is carboxylase coenzyme, involved in many carboxylation reactions, and is an important coenzyme in the metabolism of sugar, protein and fat.
It is used as food fortifier. It is used for infant food with amount of 0.1~0.4mg/kg, in the drinking liquid 0.02~0.08mg/kg.
It could be used for labeling proteins, antigens, antibodies, nucleic acids (DNA, RNA) and so on.
