Ascorbic acid

vitamin C

Molecular structure via molpic based on CDK

Rotamer []

Conformer structure via 3Dmol.js

Physical properties []
Molecular mass	176.12 g/mol ^[1]
Density	1.65 (NTP, 1992) - Denser than water; will sink g/cm³ ^[1]
Appearance	Crystals (usually plates, sometimes needles, monoclinic system) ^[1]
Odor	Odorless ^[1]
Taste	Pleasant, sharp, acidic taste ^[1]
Melting point	374 to 378 °F (decomposes) (NTP, 1992) ^[1]
Decomposition	When heated to decomposition it emits acrid smoke and irritating fumes. ^[1]
Solubility	greater than or equal to 100 mg/mL at 73 °F (NTP, 1992) ^[1]
Predicted LogP	-1.6 ^[1]

Structural Identifiers []
Molecular formula	C₆H₈O₆ ^[1]
IUPAC name	(2R)-2-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxy-2H-furan-5-one ^[1]
SMILES	C([C@@H]([C@@H]1C(=C(C(=O)O1)O)O)O)O ^[1]
InChI	InChI=1S/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2/t2-,5+/m0/s1 ^[1]
InChIKey	CIWBSHSKHKDKBQ-JLAZNSOCSA-N ^[1]

Ascorbic acid (also known as Ascorbic Acid, ascorbic acid, vitamin C, 50-81-7, L(+)-Ascorbic acid, Ascoltin, Ascorbicap, Cevitamic acid, Allercorb or Ascorbajen) is a vitamin substance of the carboxylic acid class.

Chemistry

Stereochemistry []

Ascorbic acid is a absolute mixture.

Pharmacology

ATC Classification

In the sensory organs (S) ascorbic acid acts In the genito urinary system and sex hormones (G) ascorbic acid acts In the alimentary tract and metabolism (A) ascorbic acid acts

Metabolism

Subjective effects []

0xea / Ascorbic acid []
Routes: Oral Intravenous Indication: dissolving freebase compounds

External links []

References []

National Center for Biotechnology Information. PubChem Compound Summary for CID 54670067, Ascorbic Acid. Accessed February 17, 2026. https://pubchem.ncbi.nlm.nih.gov/compound/54670067
U.S. Food and Drug Administration; National Center for Advancing Translational Sciences. Ascorbic acid. UNII: PQ6CK8PD0R. Global Substance Registration System. Accessed February 17, 2026. https://gsrs.ncats.nih.gov/ginas/app/beta/substances/PQ6CK8PD0R

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