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dehydroascorbic acid

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Origin: China

Cas No: 490-83-5

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Product Description

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CAS No.: 490-83-5 Formula: C6H6O6 Molecular Weight: 174.10800

Description

Dehydroascorbic acid (DHA) is an oxidized form of ascorbic acid (vitamin C). It is actively imported into the endoplasmic reticulum of cells via glucose transporters. It is trapped therein by reduction back to ascorbate by glutathione and other thiols. The (free) chemical radical semidehydroascorbic acid (SDA) also belongs to the group of oxidized ascorbic acids.

Basic Info

Chemical Name	dehydroascorbic acid
Synonyms	L-Dehydro Ascorbic Acid; DEHYDROASCORBIC ACID;
CAS No.	490-83-5
Molecular Formula	C6H6O6
Molecular Weight	174.10800
PSA	100.90000
LogP	-2.59680

Properties

Density	1.743g/cm3
Boiling Point	389.3ºC at 760mmHg
Melting Point	228ºC (dec.)(lit.)
Flash Point	170ºC
Refractive Index	1.569
Storage Condition	-20ºC
Vapor Pressure	1.14E-07mmHg at 25°C

Safety Info

WGK Germany	3

Synthesis Route

ubiquinone-0+L-ascorbic acid→2,3-Dimethoxy-5-methyl-1,4-hydroquinone+dehydroascorbic acid
L-galactono-1,4-lactone→L-ascorbic acid+dehydroascorbic acid
L-ascorbic acid→dehydroascorbic acid

Precursor

L-ascorbic acid
L-ascorbate

Water

Downstream Product

L-ascorbic acid
oxidized DTT
(4R,5S)-4,5,6-trihydroxy-2,3-dioxohexanoic acid
2-furoic acid

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