Biotin (or vitamin B₇) is one of the B vitamins. It is involved in a wide range of metabolic processes, both in humans and in other organisms, primarily related to the utilization of fats, carbohydrates, and amino acids. The name biotin, borrowed from the German Biotin, derives from the Ancient Greek word "βίοτος" (bíotos; "life") and the suffix "-in" (a suffix used in chemistry usually to indicate "forming").

Biotin

Names
Preferred IUPAC name 5-[(3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]pentanoic acid
Other names Vitamin B7
Identifiers
CAS Number	58-85-5 Y
3D model (JSmol)	Interactive image Interactive image
ChEBI	CHEBI:15956 Y
ChEMBL	ChEMBL857 Y
ChemSpider	149962 Y
DrugBank	DB00121 Y
ECHA InfoCard	100.000.363
IUPHAR/BPS	4787
KEGG	D00029 Y
PubChem CID	171548
UNII	6SO6U10H04 Y
CompTox Dashboard (EPA)	DTXSID7022679
InChI InChI=1S/C10H16N2O3S/c13-8(14)4-2-1-3-7-9-6(5-16-7)11-10(15)12-9/h6-7,9H,1-5H2,(H,13,14)(H2,11,12,15)/t6-,7-,9-/m0/s1 Y Key: YBJHBAHKTGYVGT-ZKWXMUAHSA-N Y InChI=1/C10H16N2O3S/c13-8(14)4-2-1-3-7-9-6(5-16-7)11-10(15)12-9/h6-7,9H,1-5H2,(H,13,14)(H2,11,12,15)/t6-,7-,9-/m0/s1 Key: YBJHBAHKTGYVGT-ZKWXMUAHBB
SMILES O=C1N[C@@H]2[C@@H](SC[C@@H]2N1)CCCCC(=O)O C1[C@H]2[C@@H]([C@@H](S1)CCCCC(=O)O)NC(=O)N2
Properties
Chemical formula	C10H16N2O3S
Molar mass	244.31 g·mol−1
Appearance	White crystalline needles
Melting point	232 to 233 °C (450 to 451 °F; 505 to 506 K)
Solubility in water	22 mg/100 mL
Pharmacology
ATC code	A11HA05 (WHO)
Hazards
NFPA 704 (fire diamond)	1 1 0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references