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
- Molecular Weight:
- 174.11
- MOL File:
- 490-83-5.mol
- MSDS File:
- SDS
- Modify Date:
- 2023/6/8 9:03:01
| 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) |
DEHYDROASCORBIC ACID price More Price(3)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 261556 | (L)-Dehydroascorbic acid | 490-83-5 | 250MG | ₹6646.55 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 261556 | (L)-Dehydroascorbic acid | 490-83-5 | 1G | ₹12156.48 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 261556 | (L)-Dehydroascorbic acid | 490-83-5 | 5G | ₹22743.33 | 2022-06-14 | Buy |
DEHYDROASCORBIC ACID Chemical Properties,Uses,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
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| Aptus Therapeutics | +91-9966349855 +91-9966349855 | Telangana, India | 19 | 58 | Inquiry |
| NSJ Prayog Life Sciences Private Limited | +91-6281747900 +91-6281747900 | Hyderabad, India | 76 | 58 | Inquiry |
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
| A.J Chemicals | 91-9810153283 | New Delhi, India | 6124 | 58 | Inquiry |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | China | 21675 | 55 | Inquiry |
| career henan chemical co | +86-0371-86658258 +8613203830695 | China | 29900 | 58 | Inquiry |
| Jinan Carbotang Biotech Co.,Ltd. | +8615866703830 | China | 7287 | 58 | Inquiry |
| Xi'an Kono chem co., Ltd., | 029-86107037 13289246953 | China | 2995 | 58 | Inquiry |
| BOC Sciences | +1-631-485-4226 | United States | 19553 | 58 | Inquiry |
| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | China | 39916 | 58 | Inquiry |
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