Ascomycin
- CAS No.
- 104987-12-4
- Chemical Name:
- Ascomycin
- Synonyms
- AAG;IMMUNOMYCIN;FK-520;FR-900520;AscoMycin solution;Tacrolimus USP Related Compound A;CBR02;FR 520;C058028;CS-1818
- CBNumber:
- CB2406330
- Molecular Formula:
- C43H69NO12
- Molecular Weight:
- 792.01
- MDL Number:
- MFCD06198665
- MOL File:
- 104987-12-4.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 153-157°C |
|---|---|
| Boiling point | 868℃ |
| Density | 1.19±0.1 g/cm3(Predicted) |
| Flash point | >110°(230°F) |
| storage temp. | Inert atmosphere,Store in freezer, under -20°C |
| solubility | ≥38.9 mg/mL in DMSO; insoluble in H2O; ≥98.6 mg/mL in EtOH |
| form | Powder |
| pka | 9.97±0.70(Predicted) |
| color | White to off-white |
| Water Solubility | Soluble in DMSO at 65mg/ml; soluble in ethanol at 50mg/m; with warming. Very poorly soluble in water |
| InChIKey | ZDQSOHOQTUFQEM-AMASXYNMSA-N |
| FDA UNII | AUF4U5NSJK |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS02,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H225-H302+H332-H319-H302-H312-H332 | |||||||||
| Precautionary statements | P210-P305+P351+P338-P261-P280h-P301+P312a-P304+P340-P321-P501a | |||||||||
| Hazard Codes | Xn,F | |||||||||
| Risk Statements | 20/21/22-36-11 | |||||||||
| Safety Statements | 36/37-16 | |||||||||
| RIDADR | UN 1648 3 / PGII | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | KD4185000 | |||||||||
| F | 10 | |||||||||
| HS Code | 29419090 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| NFPA 704 |
|
Ascomycin price More Price(88)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | A3835 | Ascomycin from Streptomyces hygroscopicus var. ascomyceticus | 104987-12-4 | 1mg | $302 | 2026-04-30 | Buy |
| Sigma-Aldrich | A-094 | Ascomycin solution 1.0?mg/mL in acetonitrile, ampule of 1?mL, certified reference material, Cerilliant? | 104987-12-4 | 1mL | $308 | 2026-04-30 | Buy |
| Sigma-Aldrich | A-094 | Ascomycin solution 1.0mg/mL in acetonitrile, ampule of 1mL, certified reference material | 104987-12-4 | 094-1ml | $220 | 2021-12-16 | Buy |
| Cayman Chemical | 11309 | Ascomycin ≥98% | 104987-12-4 | 5mg | $54 | 2026-04-30 | Buy |
| Cayman Chemical | 11309 | Ascomycin ≥98% | 104987-12-4 | 10mg | $102 | 2026-04-30 | Buy |
Ascomycin Chemical Properties, Uses, Production
Chemical Properties
White Solid
Uses
A potent immunosuppressive agent and could be used as a potential therapeutic agent for autoimmune diseases
Uses
Ascomycin is a macrocyclic lactone closely related to tacrolimus and rapamycin. Ascomycin is isolated from several species of Streptomyces and was first reported in 1988. Ascomycin exhibits limited, potent antifungal activity but has found considerable utility as an immunosuppressant.
Uses
Everolimus is a semi-synthetic macrocyclic lactone prepared from rapamycin by selective alkylation of the 42-hydroxy group with a silyl-protected hydroxyethyl triflate moiety, followed by addition of an ethylhydroxy moiety to provide greater stability and bioavailability. Like all tacrolimus analogues, everolimus binds to receptor protein, FKBP12. The complex then binds to mTOR preventing it from interacting with target proteins. Everolimus is extensively cited in the literature with over 2,000 citations.
Definition
ChEBI: A macrolide that is produced by the fermentation of Streptomyces hygroscopicus and exhibits strong immunosuppressant properties.
Biological Activity
ascomycin (fk 520, fr900520) is a novel neutral macrolide immunosuppressant, isolated from the cultured broth of streptomyces hygroscopicus subsp. yakushimaensis no. 7238.
in vitro
ascomycin (fk 520, fr900520) suppressed lymphocyte reaction in a dose dependent fashion. ascomycin was non-toxic at concentrations less than 3,200 nm, at which the percent inhibition was 18.9%. ascomycin showed antifungal activity against aspergillus fumigatus ifo 5840. ascomycin had no inhibitory effect on bacteria or yeast at 100 μg/ml [1].
in vivo
ascomycin was dose-dependently effective and clearly prolonged skin allograft survival at 3.2 mg/kg or more, though all skin allografts were rejected within 7 days in rats treated intramuscularly with olive oil. ascomycin, dissolved in olive oil, showed no adverse effect when administered intraperitoneally to ddy mice (male, 8 weeks old) at 100 mg/kg [1].
target
peptidyl-prolyl cis-trans isomerase
storage
-20°C
References
[1] hatanaka h, kino t, miyata s, inamura n, kuroda a, goto t, tanaka h, okuhara m. fr-900520 and fr-900523, novel immunosuppressants isolated from a streptomyces. ii. fermentation, isolation and physico-chemical and biological characteristics. j antibiot (tokyo). 1988;41(11):1592-601.
Ascomycin Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Guangzhou Alice Biotechnology Co., Ltd. | 0898-31318057 13265151549 | 3080931802@qq.com | China | 178 | 58 |
| Shanghai Forever Synthesis Co.,Ltd | 18096642264 18096642264 | sales01@foreversyn.com | China | 996 | 58 |
| Shanghai Jiapu Biotechnology Co., Ltd | 18221901645 | 18221901645@163.com | China | 68 | 58 |
| Zhejiang Huida Biotech Co., Ltd. | 0571-89903022 18679456698 | zilong@hizyme.com | China | 7853 | 58 |
| Nanjing Yuanke Xinrui Pharmaceutical Technology Co., Ltd. | 18851867769 | 18851867769@163.com | China | 67 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| 3B Pharmachem (Wuhan) International Co.,Ltd. | 18930552037 | 3bsc@sina.com | China | 15813 | 69 |
| Chembest Research Laboratories Limited | 021-20908456 | sales@BioChemBest.com | China | 5996 | 61 |
| Chemsky（shanghai）International Co.,Ltd. | 021-50135380 | shchemsky@sina.com | China | 32273 | 50 |
| China DongFan Chemical Co.,LTD | 86-0571-85151182 | China | 5681 | 66 |
View Latest Price from Ascomycin manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-16 | Ascomycin
104987-12-4
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
 |
2026-09-16 | Ascomycin
104987-12-4
|
100G | 98%min | 30kg/month | WUHAN FORTUNA CHEMICAL CO., LTD | ||
 |
2026-09-02 | Ascomycin
104987-12-4
|
$1.00-8.00 | 1kg | 99% | Henan Fengda Chemical Co., Ltd |
