DEHYDROASCORBIC ACID

Product Name: DEHYDROASCORBIC ACID
CAS No.: 490-83-5
Chemical Name: DEHYDROASCORBIC ACID
Synonyms: Dehydroascorbate;DEHYDRO-L-ASCORBIC ACID;BIS-DHA;C05422;ehydroascorbicaci;L-Dehydroascorbate;OXIDIZED VITAMIN C;DEHYDROASCORBIC ACID;Oxidized Ascorbic Acid;L-ASCORBIC ACID OXIDIZED
CBNumber: CB1397000
Molecular Formula: C6H6O6
Formula Weight: 174.11
MOL File: 490-83-5.mol

More

Less

DEHYDROASCORBIC ACID Property

Melting point:: 228 °C (dec.)(lit.)
alpha: D20 +56°
Boiling point:: 389.3±38.0 °C(Predicted)
Density: 1.743±0.06 g/cm3(Predicted)
storage temp.: -20°C
solubility: DMSO (Slightly, Heated), Methanol (Slightly, Sonicated)
form: Solid
pka: 3.90(at 25℃)
color: White to Dark Orange
Merck: 13,2886
Stability:: Light Sensitive
LogP: -1.702 (est)
CAS DataBase Reference: 490-83-5(CAS DataBase Reference)

More

Less

Safety

Hazard Codes: Xn
Risk Statements: 22
WGK Germany: 3
F: 1-8-10
HS Code: 2936270000

More

Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P501Dispose of contents/container to..…

More

Less

N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 261556
Product name: (L)-Dehydroascorbic acid
Packaging: 1g
Price: $172
Updated: 2024/03/01

Sigma-Aldrich

Product number: 261556
Product name: (L)-Dehydroascorbic acid
Packaging: 5g
Price: $433
Updated: 2024/03/01

Cayman Chemical

Product number: 29089
Product name: Dehydroascorbic Acid
Packaging: 250mg
Price: $97
Updated: 2024/03/01

Cayman Chemical

Product number: 29089
Product name: Dehydroascorbic Acid
Packaging: 1g
Price: $321
Updated: 2024/03/01

Sigma-Aldrich

Product number: 261556
Product name: (L)-Dehydroascorbic acid
Packaging: 250mg
Price: $93.4
Updated: 2024/03/01

More

Less

DEHYDROASCORBIC ACID Chemical Properties,Usage,Production

Chemical Properties

Orange Solid

Uses

The reversibly oxidized form of ascorbic acid.

Definition

ChEBI: Dehydroascorbic acid having the L-configuration.

Purification Methods

Crystallise dehydro-L(+)-ascorbic acid from MeOH. The anhydrous acid is formed by heating it in a vacuum at 100o/1hour to give a crisp glassy product which when shaken with absolute EtOH and then kept at 0o for 2days gives microcrystals of the anhydrous acid. This is then washed with absolute EtOH and dried in a vacuum. It has m 225o(dec) and is stable in acidic solution but decomposes rapidly in alkaline solution. A 1% solution of the anhydrous acid when dissolved in phthalate/HCl buffer pH 3.5 at 60o and cooled to 20o has [] 20D +56o(0minutes), +53.5o(2hours), +19o(3days), -2o(5days) and -6o(6days); then it becomes orange in colour. A freshly prepared 1% solution in H2O has [] D +50o(0minutes), +44o(2hours), +16o(3days) and 0o(5days). [Herbert et al. J Chem Soc 1270 1933, Kenyon et al. J Chem Soc 158 1948, Beilstein 18/5 V 411.]

DEHYDROASCORBIC ACID Preparation Products And Raw materials

Raw materials

Preparation Products

More

Less

DEHYDROASCORBIC ACID Suppliers

Canada 1 China 110 Germany 2 India 4 Japan 1 Switzerland 3 United Kingdom 9 United States 23 USA 1 Global 154

J & K SCIENTIFIC LTD.

Tel: 010-82848833 400-666-7788
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Meryer (Shanghai) Chemical Technology Co., Ltd.

Tel: 4006608290; 18621169109
Fax: 86-21-61259102
Email: market03@meryer.com
Country: China
ProdList: 40241
Advantage: 62

3B Pharmachem (Wuhan) International Co.,Ltd.

Tel: 821-50328103-801 18930552037
Fax: 86-21-50328109
Email: 3bsc@sina.com
Country: China
ProdList: 15848
Advantage: 69

Chemsky（shanghai）International Co.,Ltd.

Tel: 021-50135380
Email: shchemsky@sina.com
Country: China
ProdList: 32344
Advantage: 50

Sinopharm Chemical Reagent Co,Ltd.

Tel: 86-21-63210123
Fax: 86-21-63290778 86-21-63218885
Email: sj_scrc@sinopharm.com
Country: China
ProdList: 9823
Advantage: 79

Spectrum Chemical Manufacturing Corp.

Tel: 021-021-021-67601398-809-809-809 15221380277
Fax: 021-57711696
Email: marketing_china@spectrumchemical.com
Country: China
ProdList: 9664
Advantage: 60

ShangHai YuanYe Biotechnology Co., Ltd.

Tel: 021-61312847 13636370518
Fax: 021-55068248
Email: shyysw007@163.com
Country: China
ProdList: 4941
Advantage: 60

Shanghai Ruji Biology Technology Co., Ltd.

Tel: +86-21-65211385-8001 36031160
Fax: +86-21-65211385-8004
Email: sales@shruji.com
Country: China
ProdList: 3224
Advantage: 55

TargetMol Chemicals Inc.

Tel: 021-33632979 15002134094
Fax: 021-33632979
Email: marketing@targetmol.com
Country: China
ProdList: 7934
Advantage: 58

ChemStrong Scientific Co.,Ltd

Tel: 0755-0755-66853366 13670046396
Fax: 0755-28363542
Email: sales@chem-strong.com
Country: China
ProdList: 17982
Advantage: 56

More

Less

View Lastest Price from DEHYDROASCORBIC ACID manufacturers

Zhuozhou Wenxi import and Export Co., Ltd

Product: (L)-Dehydroascorbic acid 490-83-5
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-06-27

Career Henan Chemical Co

Product: DEHYDROASCORBIC ACID 490-83-5
Price: US $1.00/kg
Min. Order: 1g
Purity: 99%
Supply Ability: 100KG
Release date: 2018-12-24

490-83-5, DEHYDROASCORBIC ACIDRelated Search:

Sodium sulfide Vitamin E Acetylsalicylic acid culture medium ACETYL-SEROTONIN, N-(SH) Collagen ANTIOXIDANT 765 Ascorbic Acid DEHYDROASCORBIC ACID 2,3-HEXANEDIONE (S)-5-Hydroxymethyldihydrofuran-2-one Dihydrofuran-3(2H)-one TETRONIC ACID 2-Methyltetrahydrofuran-3-one D-Dehydroascorbic acid 1-DEHYDROASCORBIC ACID 5-(1,2-DIHYDROXYETHYL)-2,3,4(5H)-FURANTRIONE ASCORBIC ACID/DEHYDROASCORBIC ACID

(5R)-5β-[(S)-1,2-Dihydroxyethyl]tetrahydrofuran-2,3,4-trione

C05422

Dehydroascorbate

L-Dehydroascorbate

L-threo-2,3-Hexodiulosonic Acid γ-Lactone

Oxidized Ascorbic Acid

L-ASCORBIC ACID OXIDIZED

DEHYDROASCORBIC ACID

DEHYDRO-L-ASCORBIC ACID

DEHYDRO-L(+)-ASCORBIC ACID, DIMER

BIS-DEHYDRO-L-ASCORBIC ACID

BIS-DHA

OXIDIZED VITAMIN C

L-(+)-Dehydroascorbic Acid (1.24728)

L-threo-hexo-2,3-diulosono-1,4-lactone

L-threo-2,3-Hexodiulosonic acid, .gamma.-lactone

5-(1,2-dihydroxyethyl)oxolane-2,3,4-trione

DEHYDROASCORBIC ACID(RG)

L-(+)-DEHYDROASCORBICACID

Ascorbic Acid Impurity 18

(5R)-5-[(1S)-12-dihydroxyethyl]oxolane-234-trione

(R)-5-((S)-1,2-dihydroxyethyl)furan-2,3,4(5H)-trione

L-threo-2,3-Hexodiulosonic acid, g-lactone

ehydroascorbicaci

DEHYDROASCORBIC ACID USP/EP/BP

TIANFUCHEM--High purity 490-83-5 DEHYDROASCORBIC ACID

13C6]-(L)-Dehydroascorbic acid

490-83-5

C8H10O6

Specialty Synthesis

Monosaccharides

Carbohydrate Synthesis

KETONE

Carbohydrates & Derivatives

Intermediates & Fine Chemicals

Pharmaceuticals

Carbohydrate Synthesis

Monosaccharides

Specialty Synthesis