
Chemical identity
Rifamycin Y
CAS 15271-73-5 · C39H47NO15
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-26986 |
|---|---|
| PubChem CID | 6916298 |
| Name | Rifamycin Y |
| CAS RN | 15271-73-5 |
| Molecular formula | C39H47NO15 |
| Molecular weight | 769.8 g/mol |
| IUPAC name | 4-O-(Carboxymethyl)-21-deoxy-20-hydroxy-21-oxorifamycin; Acetic acid, [(1,2-dihydro-5,6,16,19,21-pentahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-1,11,17-trioxo-2,7-(epoxypentadeca[1,11,13]trienimino)naphtho[2,1-b]furan-9-yl)oxy]-, 21-acetate |
| InChIKey | WVPVVIOXGMSGRF-AYDMIGIISA-N |
02Structure identifiers

The parsed structure contains 5 rings, includes aromatic atoms, includes aliphatic carbon. These statements are calculated from the published structure string.
| Defined stereocentres | 0 |
|---|---|
| Unassigned stereocentres | 8 |
| Ring count | 5 |
| Secondary amines | 0 |
| Tertiary amines | 0 |
| N-methyl amine sites | 0 |
| SMILES | CC1C(/C=C\OC2(C(=O)C3=C(O2)C(=C(C4=C(C(=CC(=C43)OCC(=O)O)NC(=O)/C(=C\C=C/C(C(=O)C(C(C(C1OC(=O)C)C)O)C)(C)O)/C)O)O)C)C)OC |
|---|---|
| InChI | Not listed |
| Formula from structure | C39H47NO15 |
| Molecular weight from structure | 769.8 g/mol |
03Stereochemistry
The published structure contains 0 defined and 8 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.
Published same-connectivity configurations
1 recordThese records have the same connectivity, molecular formula and protonation layer, but a different complete InChIKey stereochemical layer. Only separately structure-linked records are shown.

No additional structure-linked configuration with the same connectivity is currently present in the LazyChem dataset.
Scope: The mathematical 2^n value is only an upper bound. Symmetry and other stereogenic elements can change the number of distinct stereoisomers. A hypothetical configuration is not published as a compound record without a verified structure identity.
04India status for this compound
These results apply only to this exact compound name and CAS number. Confirm the current official instruments before making a regulatory decision.
| NDPS / RCS | NO EXACT MATCH FOUND | CAS 15271-73-5 has no exact match in the reviewed published schedule. |
|---|---|---|
| SCOMET | NO EXACT REVIEWED CAS MATCH | CAS 15271-73-5 has no exact match in the reviewed SCOMET list. |
| Review date | 2026-08-01 | Recheck the current official instruments for the material, concentration, activity and date in question. |
- Narcotic Drugs and Psychotropic Substances Act, 1985, ScheduleDepartment of Revenue, Government of India · reviewed 2026-08-01
- Controlled-substances notifications and amendmentsDepartment of Revenue, Government of India · reviewed 2026-08-01
- Appendix 3, SCOMET ListDirectorate General of Foreign Trade, Government of India · reviewed 2026-08-01
05Names and relationships
Associated parent compound
Rifamycin
View API and impurity familyOther names
- Rifamycin, 4-O-(carboxymethyl)-21-deoxy-20-hydroxy-21-oxo
- 2,7-(Epoxypentadeca[1,11,13]trienimino)naphtho[2,1-b]furan, rifamycin deriv
- 2-[[(9Z,19Z,21Z)-13-Acetyloxy-2,15,18,29-tetrahydroxy-11-methoxy-3,7,12,14,16,18,22-heptamethyl-6,17,23-trioxo-8,30-dioxa-24-azatetracyclo[23.3.1.14,7.05,28]triaconta-1(29),2,4,9,19,21,25,27-octaen-27-yl]oxy]acetic acid
- 15271-73-5
- NSC145655
- 4-O-Carboxymethyl-21-deoxy-20-hydroxy-21-oxorifamycin
- DTXSID60426025
- {[(12Z,14Z,24Z)-21-(Acetyloxy)-5,6,16,19-tetrahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-1,11,17-trioxo-1,2-dihydro-2,7-(epoxypentadeca[1,11,13]trienoimino)naphtho[2,1-b]furan-9-yl]oxy}acetic acid
06Documented history
Dated discovery, occurrence, use and issue claims are published only when a suitable primary or government source is available.
No verified discovery, first report, occurrence, use or issue event is currently available for this identity.
07Sources
- S01PubChem compound record, CID 6916298
Names and machine-readable chemical identity properties.
- S02NCBI website and molecular data policies
Reuse policy for NCBI molecular data. This page does not reproduce vendor descriptions or contributed narrative text.
- S03Narcotic Drugs and Psychotropic Substances Act, 1985, Schedule
Department of Revenue, Government of India. Used for the exact-compound India status shown on this page.
- S04Controlled-substances notifications and amendments
Department of Revenue, Government of India. Used for the exact-compound India status shown on this page.
- S05Appendix 3, SCOMET List
Directorate General of Foreign Trade, Government of India. Used for the exact-compound India status shown on this page.
