Ascorbic acid

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L-Ascorbic acid
L-Ascorbic acid.svg
Ascorbic-acid-from-xtal-1997-3D-balls.png
Names
IUPAC name
(5R)-[(1S)-1,2-Dihydroxyethyl]-3,4-dihydroxyfuran-2(5H)-ane
Ither names
Vitamin C
Identifiers
Jmol-3D images Image
Image
ChEBI CHEBI:29073 N
ChEMBL ChEMBL196 N
ChemSpider 10189562 N
EC Nummer 200-066-2
KEGG D00018 YesY
UNII PQ6CK8PD0R YesY
Properties
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
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
A11GA01 (WHO) G01AD03, S01XA15
Hazards
Safety data sheet JT Baker
Oxford University
NFPA 704
Flammability code 1: Must be pre-heatit afore igneetion can occur. Flash pynt ower 93 °C (200 °F). E.g., canola ile Health code 1: Exposur would cause irritation but anly minor residual injury. E.g., turpentine Reactivity code 0: Normally stable, even unner fire exposur condeetions, an is nae reactive wi watter. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
Lethal dose or concentration (LD, LC):
11.9 g/kg (oral, rat)[1]
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
YesY verify (whit is YesYN ?)
Infobox references

Ascorbic acid is a naiturally occurrin organic compoond 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.

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