Product Name: D-Biotin
Synonyms: Biotin for system suitability;D-Biotin High purity Vitamin H CAS:58-85-5 22879-79-4 CAS NO.58-85-5;)]-6a,7,8,10a-Tetrahydro-1-hydroxy-6,9-dimethyl-3-pentyl-6H-dibenzo[b,d]pyran-6-methanol;RONACARE(TM) BIOTIN PLUS;PHOTOPROBE(R) BIOTIN;VITAMIN B7;VITAMIN H;BIOTIN(V-H)
CAS: 58-85-5
MF: C10H16N2O3S
MW: 244.31
EINECS: 200-399-3
Product Categories: -;cyclic compounds;PHARMACEUTICALS;Miscellaneous Natural Products;Other Reagents;Biochemistry;Vitamins;API;Vitamin series;Inhibitor;Biotinylation Reagents;RONIACOL;Isolabel;biotinyl;Nutritional Supplements;Vitamins and derivatives;Biotin Derivatives;Intermediates & Fine Chemicals;Vitamin Ingredients;Inhibitors
Mol File: 58-85-5.mol
D-Biotin Structure
D-Biotin Chemical Properties
Melting point 231-233 °C(lit.)
alpha 89 º (c=1, 0.1N NaOH)
density 1.2693 (rough estimate)
refractive index 90.5 ° (C=2, 0.1mol/L NaOH)
storage temp. 2-8°C
solubility H2O: 0.2 mg/mL Solubility increases with addition of 1 N NaOH.
form powder
PH 4.5 (0.1g/l, H2O)
optical activity [α]20/D +91±2°, c = 1% in 0.1 M NaOH
Water Solubility Soluble in hot water, dimethyl sulfoxide, alcohol and benzene.
Sensitive Light Sensitive
Merck 14,1231
BRN 86838
Stability: Stable, but light sensitive. Incompatible with strong oxidizing agents, strong bases, strong acids, formaldehyde, chloramine-T, nitrous acid.
InChIKey YBJHBAHKTGYVGT-ZKWXMUAHSA-N
CAS DataBase Reference 58-85-5(CAS DataBase Reference)
NIST Chemistry Reference Biotin(58-85-5)
EPA Substance Registry System 1H-Thieno[3,4-d] imidazole-4-pentanoic acid, hexahydro-2-oxo-, (3aS,4S,6aR)-(58-85-5)
Safety Information
Hazard Codes Xn
Risk Statements 20/21/22-36/37/38
Safety Statements 24/25-36-26
WGK Germany 1
RTECS XJ9088200
F 8
TSCA Yes
HS Code 29362930
Hazardous Substances Data 58-85-5(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: > 2000 mg/kg
MSDS Information
Provider Language
Hexahydro-2-oxo-1H-thieno[3,4-d]imidazole-4-pentanoic acid English
ACROS English
SigmaAldrich English
ALFA English
D-Biotin Usage And Synthesis
Description 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.
It is composed of a ureido ring fused with a tetrahydrothiophene ring. A valeric acid substituent is attached to one of the carbon atoms of the tetrahydrothiophene ring. Biotin is a coenzyme for carboxylase enzymes, involved in the synthesis of fatty acids, isoleucine, and valine, and in gluconeogenesis.
Subclinical deficiency of Biotin can cause mild symptoms, such as hair thinning or skin rash typically on the face. Thus, This product is recommended for general food fortification and dietary supplement applications.
Generally, D-Biotin can be used for baby food and dietetics, for solid and liquid pharmaceutical preparations, for cosmetic preparations, and for use in the fermentation industry.
Physicochemical property Biotin is widely distributed in animals and plants, and the natural presence of biotin is mainly in the form of binding with other molecules. The biochemical structure of biotin includes a shuttle chain containing five carbon atoms and two five-membered heterocycles. In vivo the shuttle of the side chain binds with lysine s residue of enzyme protein, playing a role of coenzyme. Biotin may have 8 different isomers, of which only D-biotin has biological activity. Under normal circumstances, biotin is quite stable, only in the strong acid, alkali, formaldehyde and UV treatment will be destroyed. Biotin is the carrier of carboxyl in the carboxylation reaction required large ATP. The carboxyl group is temporarily bound to a nitrogen atom on the bicyclic ring system of biotin, such as in the reaction of pyruvate carboxylase catalyzing the pyruvate carboxylation of oxaloacetate.
structural formula
Figure1: The structural formula of the biotin molecule
Physiological function Biotin is necessary for cell growth, the production of fatty acids, and the metabolism of fats and amino acids. It plays a role in the citric acid cycle, which is the process by which biochemical energy is generated during aerobic respiration. Biotin is a coenzyme for carboxylase enzymes, involved in the synthesis of fatty acids, isoleucine, and valine, and in gluconeogenesis. In addition, biotin is widely used throughout the biotechnology industry to conjugate proteins for biochemical assays.
We need biotin about 100 to 300 micrograms per day. There is an antibiotic protein that could combine with biotin in the egg white egg. After combining, it cannot be absorbed by the digestive tract; resulting in animal biotin deficiency, at the same time loss of appetite, glossitis, dermatitis dermatitis, hair removal and so on. However, there is no case of biotin deficiency on human, probably because in addition to food sources, intestinal bacteria can also synthesize biotin. Biotin is a coenzyme of a lot of enzymes in the human body. It participates in the metabolism of aliphatic acid, carbohydrate, vitamin B12, folic acid and pantothenic acid; promoting synthesis of protein and urea, and also promoting excretion.
Help fat, glycogen and amino acids for normal synthesis and metabolism in the human body;
Promote the normal operation and growth of sweat glands, nerve tissue, bone marrow, male gonads, skin and hair, and reduce eczema, dermatitis symptoms;
Prevent white hair and hair loss, contribute to the treatment of baldness;
Relieve muscle pain;
Promote synthesis and excretion of urea, purine synthesis and oleic acid biosynthesis;
For the treatment of atherosclerosis, stroke, dyslipidemia, hypertension, coronary heart disease and blood circulation disorders.
Biotin and fat metabolism As a coenzyme of phthalocyanine coenzyme A, Biotin is involved in the synthesis of fatty acids, catalyzing the formation of glycine CoA. The reaction is the first step in the synthesis of fatty acids, and then through the cytoplasmic multi-enzyme complex and fatty acid synthase synthesize palmitic acid from the phthalocyanine-CoA. In the prolongation of carbon chain in the fatty acid, the propanedio phthalide-ACP is involved in the reaction as a donor of the dicarbon unit, and the dipropyl phthalide-ACP is derived from the phthalide-CoA. It can be seen that biotin is necessary for the synthesis of fatty acids and the extension of carbon chains in fatty acid. Biotin deficiency can lead to abnormal lipid metabolism, resulting in changes of fatty acid composition in the body. In addition, synthesis of saturated fatty acid decreased, synthesis of triglyeeride increased, and fat in the liver and kidney increased by 2 to 5 times. Biotin-deficient diets increase the rate of desiccation of palmitic acid in liver tissue by five folds. Palmitic acid increased, at the same time stearic acid reduced. Biotin is also a necessary material for synthesis of long-chain unsaturated fatty acid and fatty acid metabolism. Biotin is also associated with the synthesis of acetylcholine and the metabolism of cholesterol. The lack of biotin reduces the ability of animals to synthesize arachidonic acid from linoleic acid, leading to the accumulation of linoleic acid in the body.
Biotin deficiency Biotin deficiency appears to be rare, but some groups may be more susceptible.Biotin supplements are widely available but rarely necessary.
A deficiency can lead to:
Hair loss
A scaly red rash around the eyes, nose, mouth, and genitals
Cracks in the corner of the mouth
Sore tongue that may be magenta in color
Dry eyes
Loss of appetite
Other symptoms may include:
Depression
Lethargy and fatigue
Hallucinations
Insomnia
Numbness and tingling in the hands and feet
Impaired immune function and increased susceptibility to infections
Pregnant women appear to break down biotin more quickly, and this may lead to a marginal deficiency. Symptoms have not been observed, but such a deficiency could lead to developmental problems for the fetus.
Food source
Liver
Peanuts
Yeast
Whole-wheat bread
Cheddar cheese
Pork
Salmon
Sardines
Avocado
Raspberries
Bananas
Mushrooms
Cauliflower
Egg yolk