Ascorbic acid

Ascorbic acid is a naiturally occurrin organic compound wi antioxidant properties. It is a white solit, but impur samples can appear yellaeish. It dissolves well in watter tae gie mildly acidic solutions. Ascorbic acid is ane form ("vitamer") o vitamin C. It wis originally cried L-hexuronic acid, but, when it was foond tae hae vitamin C activity in ainimals ("vitamin C" bein defined as a vitamin activity, nae then a speceefic substance), the suggestion wis made tae rename it.

L-Ascorbic acid

Names
IUPAC name (5R)-[(1S)-1,2-Dihydroxyethyl]-3,4-dihydroxyfuran-2(5H)-ane
Ither names Vitamin C
Identifiers
CAS Nummer	50-81-7 N
3D model (JSmol)	Interactive eemage Interactive eemage
ChEBI	CHEBI:29073 N
ChEMBL	ChEMBL196 N
ChemSpider	10189562 N
EC Nummer	200-066-2
IUPHAR/BPS	4781
KEGG	D00018 Y
PubChem CID	5785
UNII	PQ6CK8PD0R Y
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 N Key: CIWBSHSKHKDKBQ-JLAZNSOCSA-N N
SMILES OC=1C(OC(=O)C=1O)[C@@H](O)CO C([C@@H]([C@@H]1C(=C(C(=O)O1)O)O)O)O
Properties
Chemical formula	C6H8O6
Molar mass	176.12 g·mol−1
Appearance	White or licht yellae solit
Density	1.65 g/cm3
Meltin pynt	190 tae 192 °C (374 tae 378 °F; 463 tae 465 K) decomposes
Solubility in watter	330 g/L
Solubility in ethanol	20 g/L
Solubility in glycerol	10 g/L
Solubility in propylene glycol	50 g/L
Solubility in other solvents	insoluble in diethyl ether, chloroform, benzene, petroleum ether, iles, fats
Acidity (pKa)	4.10 (first), 11.6 (seicont)
Pharmacology
ATC code	A11GA01 (WHO) G01AD03 (WHO), S01XA15 (WHO)
Hazards
Safety data sheet	JT Baker Oxford University
NFPA 704	1 1 0
Lethal dose or concentration (LD, LC):
LD50 (Median dose)	11.9 g/kg (oral, rat)
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
Y verify (whit is YN ?)
Infobox references