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CAS RN: 57-87-4 | Product Number: E0018
Ergosterol
×
Purity: >98.0%(HPLC)
Chemical Substance Law (ENCS):
9-248
Synonyms:
- Provitamin D2
Product Documents:
| Size | Unit Price | Saitama (Kawaguchi) | Hyogo (Amagasaki) | Stock in other WH |
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|---|---|---|---|---|---|
| 5G |
¥8,300
|
≥100 | 12 | Contact Us | |
| 25G |
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|
4 | 9 | Contact Us |
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* The displayed price is the unit price and does not include consumption tax. The unit prices displayed are the latest and are subject to change without notice.
* To send your quote request for bulk quantities, please click on the "Request Bulk Quote" button. Please note that we cannot offer bulk quantities for some products.
*TCI frequently reviews storage conditions to optimize them. Please note that the latest information on the storage temperature for the products is described on our website.
| Product Number | E0018 |
Purity / Analysis Method 
|
>98.0%(HPLC) |
| Molecular Formula / Molecular Weight | C__2__8H__4__4O = 396.66 |
| Physical State (20 deg.C) | Solid |
| Storage Temperature
|
Frozen (<0°C) |
| Store Under Inert Gas | Store under inert gas |
| Condition to Avoid | Light Sensitive,Hygroscopic,Heat Sensitive |
| CAS RN | 57-87-4 |
| Reaxys Registry Number | 2338604 |
| PubChem Substance ID | 87569337 |
| SDBS (AIST Spectral DB) | 2246 |
| Merck Index (14) | 3659 |
| MDL Number | MFCD00003623 |
Specifications
| Appearance | White to Light yellow powder to crystal |
| Purity(HPLC) | min. 98.0 area% |
| Melting point | 156.0 to 162.0 °C |
| Specific rotation [a]20/D | -100 to -125 deg(C=1, THF)(calcd.on anh.substance) |
| Absorbance | min. 0.500(20 mg/L, 269.0 to 273.0 nm) |
| Absorbance2 | min. 0.530(20 mg/L, 280.0 to 284.0 nm) |
| Water | max. 7.0 % |
| NMR | confirm to structure |
Properties (reference)
| Melting Point | 159 °C |
| Boiling Point | 250 °C/0.01 mmHg |
| Specific Rotation | -113° (C=1,THF) |
GHS
Related Laws:
| Chemical Substance Law (ENCS) |
9-248 |
Transport Information:
Application
Ergosterol: A Sterol Found in Cell Membranes of Fungi
Ergosterol is a sterol found in cell membranes of fungi which use principally it instead of cholesterol [C0318] on humans and other mammals. So many antifungal agents target ergosterol as a way to disrupt the fungal plasma membrane. Ergosterol is also called provitamin D2 because exposure it to ultraviolet (UV) light causes a chemical reaction that produces vitamin D2 (calciferol or ergocalciferol) [C0005].
References
- The biosynthesis of ergosterol (a review)
- Ergosterol content in various fungal species and biocontaminated building materials
- The biology and chemistry of antifungal agents: A review
- A new mechanistic scenario for the photochemical transformation of ergosterol: an MC-SCF and MM-VB [molecular mechanics-VB] study
- Sterol and vitamin D2 concentrations in cultivated and wild grown mushrooms: Effects of UV irradiation
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