Pyridoxine

Pyridoxine

Salts []
Pyridoxine hydrochloride

Molecular structure via molpic based on CDK

Rotamer []

Conformer structure via JSmol

Physical properties []
Molecular mass	169.18 g/mol ^[1]
Melting point	159-162 °C ^[1]
Solubility	79 mg/mL ^[1]
Predicted LogP	-0.8 ^[1]

Structural Identifiers []
Molecular formula	C₈H₁₁NO₃ ^[1]
IUPAC name	4,5-bis(hydroxymethyl)-2-methylpyridin-3-ol ^[1]
SMILES	CC1=NC=C(C(=C1O)CO)CO ^[1]
InChI	InChI=1S/C8H11NO3/c1-5-8(12)7(4-11)6(3-10)2-9-5/h2,10-12H,3-4H2,1H3 ^[1]
InChIKey	LXNHXLLTXMVWPM-UHFFFAOYSA-N ^[1]

Pharmacokinetics[]
Elimination half-life	several weeks (see #Metabolism for details)

Pyridoxine (also known as Pyridoxine, 65-23-6, Pyridoxol, Pyridoxin, Adermine, Gravidox, 3-hydroxy-4,5-bis(hydroxymethyl)-2-methylpyridine, Hydoxin, Pyridoxolum or 3,4-Pyridinedimethanol, 5-hydroxy-6-methyl-) is a substance of the pyridine class.

Chemistry

Salts []

Pyridoxine is typically found in the form of its hydrochloride salt.

Stereochemistry []

Pyridoxine is a achiral mixture

Pharmacology

ATC Classification

Metabolism

Subjective effects []

Usernotes []
0xea / Pyridoxine via Oral, Intravenousat 50-90mg oral and 40mg intravenous	uncertain activity; cold shudder upon intravenous injection

Legal status []

United Kingdom: Pyridoxine is a P substance.^[3]
United States: Pyridoxine is a OTC substance.

External links []

References []

National Center for Biotechnology Information. PubChem Compound Summary for CID 1054, Pyridoxine. Accessed January 6, 2026. https://pubchem.ncbi.nlm.nih.gov/compound/1054
U.S. Food and Drug Administration; National Center for Advancing Translational Sciences. Pyridoxine. UNII: KV2JZ1BI6Z. Global Substance Registration System. Accessed January 6, 2026. https://gsrs.ncats.nih.gov/ginas/app/beta/substances/KV2JZ1BI6Z
Pyridoxine 50mg Tablets - Summary of Product Characteristics (SmPC). April 27, 2015. Accessed January 6, 2026. https://www.medicines.org.uk/emc/medicine/28135/SPC/Pyridoxine+50mg+Tablets/

Anodyne