DEHYDROASCORBIC ACID
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DEHYDROASCORBIC ACID 속성
- 녹는점
- 228 °C (dec.)(lit.)
- 알파
- D20 +56°
- 끓는 점
- 389.3±38.0 °C(Predicted)
- 밀도
- 1.743±0.06 g/cm3(Predicted)
- 저장 조건
- -20°C
- 용해도
- DMSO(약간 용해됨, 가열), 메탄올(약간 용해됨, 초음파 처리)
- 물리적 상태
- 고체
- 물리적 상태
- 단단한 모양
- 산도 계수 (pKa)
- 3.90(at 25℃)
- 색상
- 흰색에서 진한 주황색까지
- Merck
- 13,2886
- 안정성
- 감광성
- LogP
- -1.702 (est)
- CAS 데이터베이스
- 490-83-5(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
DEHYDROASCORBIC ACID C화학적 특성, 용도, 생산
화학적 성질
Orange Solid용도
The reversibly oxidized form of ascorbic acid.정의
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 준비 용품 및 원자재
원자재
준비 용품
DEHYDROASCORBIC ACID 공급 업체
글로벌( 165)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
---|---|---|---|---|---|
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21667 | 55 |
career henan chemical co | +86-0371-86658258 +8613203830695 |
sales@coreychem.com | China | 29888 | 58 |
Jinan Carbotang Biotech Co.,Ltd. | +8615866703830 |
figo.gao@foxmail.com | China | 7621 | 58 |
Xi'an Kono chem co., Ltd., | 029-86107037 13289246953 |
info@konochemical.com | China | 2995 | 58 |
Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22968 | 58 |
BOC Sciences | +1-631-485-4226 |
inquiry@bocsci.com | United States | 19553 | 58 |
Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 |
sales@chemdad.com | China | 39916 | 58 |
CONIER CHEM AND PHARMA LIMITED | +8618523575427 |
sales@conier.com | China | 49392 | 58 |
Zhengzhou Alfa Chemical Co.,Ltd | +8618530059196 |
sale04@alfachem.cn | China | 13349 | 58 |
Hubei Ipure Biology Co., Ltd | +8613367258412 |
ada@ipurechemical.com | China | 10326 | 58 |
DEHYDROASCORBIC ACID 관련 검색:
황화나트륨 비타민 E 아스피린 비타민 C 메틸(2-)테트라히드로퓨란-3-온
culture medium
ACETYL-SEROTONIN, N-(SH)
Collagen
ANTIOXIDANT 765
DEHYDROASCORBIC ACID
2,3-HEXANEDIONE
(S)-5-Hydroxymethyldihydrofuran-2-one
Dihydrofuran-3(2H)-one
TETRONIC ACID
D-Dehydroascorbic acid
1-DEHYDROASCORBIC ACID
ASCORBIC ACID/DEHYDROASCORBIC ACID
5-(1,2-DIHYDROXYETHYL)-2,3,4(5H)-FURANTRIONE