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Rifaximin
CAS: 80621-81-4 | C43H51N3O11
2D Structure
3D Structure
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Basic Information
CAS Registry Number:
80621-81-4
Molecular Formula:
C43H51N3O11
Molecular Mass:
785.89 g/mol
Names and Synonyms:
Rifaximin
2,7-(Epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-a]benzimidazole-1,15(2H)-dione, 25-(acetyloxy)-5,6,21,23-tetrahydroxy-27-methoxy-2,4,11,16,20,22,24,26-octamethyl-, (2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-
2,7-(Epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-a]benzimidazole-1,15(2H)-dione, 25-(acetyloxy)-5,6,21,23-tetrahydroxy-27-methoxy-2,4,11,16,20,22,24,26-octamethyl-, [2S-(2R*,16Z,18E,20R*,21R*,22S*,23S*,24S*,25R*,26S*,27R*,28E)]-
(2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-25-(Acetyloxy)-5,6,21,23-tetrahydroxy-27-methoxy-2,4,11,16,20,22,24,26-octamethyl-2,7-(epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-a]benzimidazole-1,15(2H)-dione
L 105
Rifamycin L 105SV
L 105SV
Rifaximin
Rifamycin L 105
L 105 (ansamacrolide antibiotic)
refaximin
Xifaxan
Normix
Xifaxanta
(2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-5,6,21,23,25-Pentahydroxy-27-methoxy-2,4,11,16,20,22,24,26-octamethyl-2,7-(epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-a]benzimidazole-1,15(2H)-dione,25-acetate
Identifiers:
SMILES:
CO[C@H]1/C=C/O[C@@]2(C)Oc3c(C)c(O)c4c(O)c(c5c(nc6cc(C)ccn65)c4c3C2=O)N=C(O)/C(C)=CC=C[C@H](C)[C@H](O)[C@@H](C)[C@@H](O)[C@@H](C)[C@H](OC(C)=O)[C@@H]1C
InChI:
InChI=1S/C43H51N3O11/c1-19-14-16-46-28(18-19)44-32-29-30-37(50)25(7)40-31(29)41(52)43(9,57-40)55-17-15-27(54-10)22(4)39(56-26(8)47)24(6)36(49)23(5)35(48)20(2)12-11-13-21(3)42(53)45-33(34(32)46)38(30)51/h11-18,20,22-24,27,35-36,39,48-51H,1-10H3,(H,45,53)/b12-11+,17-15+,21-13-/t20-,22+,23+,24+,27-,35-,36+,39+,43-/m0/s1
Key Properties
Melting Point
200-205 °C (decomp)
CAS Common Chemistry
Spectral Data
NMR, IR, and Mass spectral data
1H NMR
13C NMR
Predicting NMR spectra...
10 ppm
9
8
7
6
5
4
3
2
1
0 ppm
| Shift (ppm) | Multiplicity | Integration | Assignment |
|---|
200 ppm
180
160
140
120
100
80
60
40
20
0 ppm
| Shift (ppm) | DEPT | Assignment |
|---|
Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 785.89 g/mol | CAS Common Chemistry |
| 785.8910000000003 g/mol | RDKit | |
| 785.3523594520001 g/mol | RDKit | |
| Canonical SMILES | O=C(OC1C(C)C(OC)C=COC2(OC3=C(C2=O)C=4C=5N=C6C=C(C=CN6C5C(NC(=O)C(=CC=CC(C)C(O)C(C)C(O)C1C)C)=C(O)C4C(O)=C3C)C)C)C | CAS Common Chemistry |
| InChI | InChI=1S/C43H51N3O11/c1-19-14-16-46-28(18-19)44-32-29-30-37(50)25(7)40-31(29)41(52)43(9,57-40)55-17-15-27(54-10)22(4)39(56-26(8)47)24(6)36(49)23(5)35(48)20(2)12-11-13-21(3)42(53)45-33(34(32)46)38(30)51/h11-18,20,22-24,27,35-36,39,48-51H,1-10H3,(H,45,53)/b12-11+,17-15+,21-13-/t20-,22+,23+,24+,27-,35-,36+,39+,43-/m0/s1 | CAS Common Chemistry |
| InChI Key | InChIKey=NZCRJKRKKOLAOJ-XRCRFVBUSA-N | CAS Common Chemistry |
| Melting Point | 200-205 °C (decomp) | CAS Common Chemistry |
| Name | Rifaximin | CAS Common Chemistry |
| Heavy Atom Count | 57 | RDKit |
| Hydrogen Bond Acceptors | 13 | RDKit |
| Hydrogen Bond Donors | 5 | RDKit |
| Rotatable Bonds | 2 | RDKit |
| Aromatic Ring Count | 4 | RDKit |
| Topological Polar Surface Area | 201.86999999999998 Ų | RDKit |
| LogP | 6.807340000000012 | RDKit |
| Molar Refractivity | 214.2374999999995 | RDKit |
