에르고스테롤
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에르고스테롤 속성
- 녹는점
- 156-158 °C(lit.)
- 알파
- -120 º (c=1, CHC13)
- 끓는 점
- 250 °C (1.3 mmHg)
- 밀도
- 0.9784 (rough estimate)
- 굴절률
- -112.5 ° (C=1, THF)
- 저장 조건
- -20°C
- 용해도
- 아세톤(약간, 가온), 클로로포름(약간), 에틸아세테이트(약간, 가온)에 용해됨
- 산도 계수 (pKa)
- 14.91±0.70(Predicted)
- 물리적 상태
- 결정성 분말 또는 결정성 바늘
- 색상
- 흰색에서 황백색까지
- optical activity
- [α]20/D 120±10°, c = 1% in chloroform
- 수용성
- 실질적으로 불용성
- 감도
- Light Sensitive
- Merck
- 14,3659
- BRN
- 2338604
- 안정성
- 안정적이지만 가볍거나 공기에 민감할 수 있습니다. 산, 강한 산화제와 호환되지 않습니다.
- InChIKey
- DNVPQKQSNYMLRS-APGDWVJJSA-N
- LogP
- 9.300 (est)
- CAS 데이터베이스
- 57-87-4(CAS DataBase Reference)
- NIST
- Ergosterol(57-87-4)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | T+,T,Xn | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 28-48/20/22-40-38-25-67-36/38-22-20-63 | ||
| 안전지침서 | 28-36/37-45-26 | ||
| 유엔번호(UN No.) | UN 2811 6.1/PG 2 | ||
| WGK 독일 | 3 | ||
| F 고인화성물질 | 1-3-8-10 | ||
| 위험 등급 | 6.1 | ||
| 포장분류 | II | ||
| HS 번호 | 29334900 | ||
| 유해 물질 데이터 | 57-87-4(Hazardous Substances Data) |
에르고스테롤 C화학적 특성, 용도, 생산
개요
Ergosterol is a membrane component and with few exceptions is restricted to eumycotic fungi (101). As a constituent of intact membranes, its abundance should reflect the amount of living fungal biomass in an environment. This membrane component has been related to biomass by a number of investigators and the values range from 1.9 to 11.5 mg ergosterol g?1 mycelium (102). These conversion factors yield very high values for fungal biomass, and seem unrealistic (102) when compared with independent measures of bacterial biomass. It is likely that the ergosterol assay detects nonliving hyphae and these measures may overestimate viable fungal biomass. Similarly, chitin is a dominant cell wall component in most fungi and has been proposed as a unique marker for total fungal biomass.화학적 성질
solid용도
Ergosterol is a steroid alcohol that when irradiated with ultraviolet light yields calciferol (vitamin d2). irradiated ergosterol is added to milk for vitamin d fortification.정의
ergosterol: A sterol occurring infungi, bacteria, algae, and plants. It isconverted into vitamin D2 by the actionof ultraviolet light.일반 설명
Ergosterol or provitamin D2 is a biological precursor of Vitamin D2. It is found predominantly in cell membranes of fungi and protists such as trypanosomes.위험도
Due to its ability to catalyze calcium deposition in the bony structure (thus preventing rickets), overdosage of vitamin D may be harmful.Purification Methods
Crystallise ergosterol from EtOAc, then from ethylene dichloride or EtOH/*C6H6 (3:1). It has been purified by conversion to the isobutyl ester which crystallises from Et2O/Me2CO (1:3) with m: turbid at 148o, melts at 159o and becomes clear at 162o, followed by hydrolysis, [Bill & Honeywell J Biol Chem 80 15 1938]. When crystallised from EtOH, it forms the 1.5-hydrate m 168o. The water is difficult to remove giving an amorphous solid m 166-183o, b 250o/high vacuum. It is light sensitive. The benzoate has m 169-171o, after crystallisation from Me2CO/*C6H6 (4:1) after prolonged standing at 0o and becomes highly charged, with [] D20 -177o (c 1, CHCl3). [UV of sterols: Hogness et al. J Biol Chem 120 239 1937, Beilstein 6 IV 4407.]에르고스테롤 준비 용품 및 원자재
원자재
알엔에이
효모폴리사카라이드
효모 추출물
4a,13b-Etheno-1H,9H-benzo[c]cyclopenta[h][1,2,4]triazolo[1,2-a]cinnoline-1,3(2H)-dione, 5,6,7,8,8a,8b,10,10a,11,12,13,13a-dodecahydro-6-hydroxy-8a,10a-dimethyl-2-phenyl-11-[(1R,2E,4R)-1,4,5-trimethyl-2-hexenyl]-, (4aS,6S,8aR,8bR,10aR,11R,13aR,13bS)-
Ergosta-4,7,22-trien-3-one, (22E)-
준비 용품
에르고스테롤 공급 업체
글로벌( 506)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| XuZhou Magic Biotechnology Co., Ltd. | +undefined13921770081 |
SVP01@magicbiotech.cn | China | 92 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
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| Firsky International Trade (Wuhan) Co., Ltd | +8615387054039 |
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2691956269@qq.com | China | 371 | 58 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 |
info@dakenam.com | China | 15965 | 58 |
| Hangzhou FandaChem Co.,Ltd. | 008657128800458; +8615858145714 |
fandachem@gmail.com | China | 9342 | 55 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 |
ivan@atkchemical.com | China | 32686 | 60 |
| Shanghai Zheyan Biotech Co., Ltd. | 18017610038 |
zheyansh@163.com | CHINA | 3620 | 58 |
| career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 58 |