(L)-Dehydroascorbic acid

ALDRICH/261556

Synonym: DHAA; Dehydro-L-ascorbate; Dehydro-L-ascorbic acid; L-threo-Dehydroascorbic acid; oxidized ascorbic acid; oxidized vitamin C

CAS Number: 490-83-5
Empirical Formula (Hill Notation): C₆H₆O₆
Molecular Weight: 174.11
EC Number: 207-720-6
MDL Number: MFCD00066467
Linear Formula: C₆H₆O₆
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-261556-250MG	250 mg	$93.40 1/EA	Add To Favorites
45-261556-1G	1 g	$172.00 1/EA	Add To Favorites
45-261556-5G	5 g	$433.00 1/EA	Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

form	powder
InChI	1S/C6H6O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-8H,1H2/t2-,5+/m0/s1
InChI key	SBJKKFFYIZUCET-JLAZNSOCSA-N
mp	228 °C (dec.) (lit.)
Quality Level	200
SMILES string	OC[C@H](O)[C@H]1OC(=O)C(=O)C1=O
storage temp.	−20°C

Application:	(L)-Dehydroascorbic acid can be used as a starting material to synthesize: • Pyrano[3,4-b]indole derivatives by reacting with 2-hydroxymethylindole. • (−)-ascorbyl phloroglucinol via stereoselective C-C bond formation reaction with phloroglucinol.
General description:	(L)-Dehydroascorbic acid (DHA) is a potent glycation agent that is produced by the oxidation of ascorbic acid (vitamin C). In vitro studies revealed that DHA is significantly more reactive than glucose and fructose in the glycation of lens proteins. Thus, DHA could be a critical precursor for the in vivo formation of advanced glycation end products (AGEs). DHA is a dimer when it is solid, but when it is dissolved in a solution, it becomes a monomer.
Packaging:	1, 5 g in glass bottle
Packaging:	250 mg in glass bottle

Hazard Codes	Xn
Risk Statements	22
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

mp	228 °C (dec.) (lit.)
Storage Temp.	−20°C
UNSPSC	12352205

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