| Identification | |
| Name: | 15,19-Epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclotricosine-1,7,20,21(4H,23H)-tetrone,8-ethyl-5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-hexadecahydro-5,19-dihydroxy-3-[(1E)-2-[(1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl]-1-methylethenyl]-14,16-dimethoxy-4,10,12,18-tetramethyl-,(3S,4R,5S,8R,9E,12S,14S,15R,16S,18R,19R,26aS)- |
| Synonyms: | 15,19-Epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclotricosine-1,7,20,21(4H,23H)-tetrone,8-ethyl-5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-hexadecahydro-5,19-dihydroxy-3-[2-(4-hydroxy-3-methoxycyclohexyl)-1-methylethenyl]-14,16-dimethoxy-4,10,12,18-tetramethyl-,[3S-[3R*[E(1S*,3S*,4S*)],4S*,5R*,8S*,9E,12R*,14R*,15S*,16R*,18S*,19S*,26aR*]]-;Ascomycin; Changchuanmycin; FK 520; FR 520; FR 900520; Immunomycin; L 683590 |
| CAS: | 11011-38-4 |
| Molecular Formula: | C43H69 N O12 |
| Molecular Weight: | 792.02 |
| InChI: | InChI=1S/C43H69NO12/c1-10-30-18-24(2)17-25(3)19-36(53-8)39-37(54-9)21-27(5)43(51,56-39)40(48)41(49)44-16-12-11-13-31(44)42(50)55-38(28(6)33(46)23-34(30)47)26(4)20-29-14-15-32(45)35(22-29)52-7/h18,20,25,27-33,35-39,45-46,51H,10-17,19,21-23H2,1-9H3/b24-18-,26-20+/t25-,27+,28+,29-,30+,31-,32+,33-,35+,36-,37-,38+,39+,43+/m0/s1 |
| Molecular Structure: | ![(C43H69NO12) 15,19-Epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclotricosine-1,7,20,21(4H,23H)-tetrone,8-ethyl-5,6,8,11,12,...](https://img1.guidechem.com/chem/e/dict/52/11011-38-4.jpg) |
| Properties | |
| Melting Point: | 156 -161 oC |
| Density: | 1.19 g/cm3 |
| Solubility: | Soluble in DMSO & Ethanol. |
| Appearance: | White Powder |
| Specification: |
Ascomycin (11011-38-4) also can be called FR-900520 ; Immunomycin ; FK520 .It has strong immunosuppressant properties as an ethyl analog of tacrolimus.It produces a more selective immunomodulatory effect in which inhibits the elicitation phase of allergic contact dermatitis but does not impair the primary immune response when administered systemically. |
| Safety Data | |
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