
Chemical identity
Cefpodoxime Proxetil Impurity 13
CAS not listed · C43H52N10O19S4
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-100784 |
|---|---|
| PubChem CID | 71314616 |
| Name | Cefpodoxime Proxetil Impurity 13 |
| CAS RN | Not listed |
| Molecular formula | C43H52N10O19S4 |
| Molecular weight | 1141.2 g/mol |
| IUPAC name | 1-propan-2-yloxycarbonyloxyethyl (6R,7R)-7-[[(2Z)-2-methoxyimino-2-[2-[[4-[(Z)-N-methoxy-C-[[(6R,7R)-3-(methoxymethyl)-8-oxo-2-(1-propan-2-yloxycarbonyloxyethoxycarbonyl)-5-thia-1-azabicyclo[4.2.0]oct-2-en-7-yl]carbamoyl]carbonimidoyl]-1,3-thiazol-2-yl]carbamoylamino]-1,3-thiazol-4-yl]acetyl]amino]-3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate |
| InChIKey | YLZQFCHCIOUKRP-OVBYXRNMSA-N |
02Structure identifiers

The parsed structure contains 6 rings, includes aromatic atoms, includes aliphatic carbon, has 4 defined stereocentres. These statements are calculated from the published structure string.
| Defined stereocentres | 4 |
|---|---|
| Unassigned stereocentres | 2 |
| Ring count | 6 |
| Secondary amines | 0 |
| Tertiary amines | 0 |
| N-methyl amine sites | 0 |
| SMILES | CC(OC(=O)OC(OC(=O)C1=C(CS[C@H]2N1C(=O)[C@H]2NC(=O)/C(=N\OC)/C3=CSC(=N3)NC(=O)NC4=NC(=CS4)/C(=N/OC)/C(=O)N[C@@H]5C(=O)N6[C@@H]5SCC(=C6C(=O)OC(OC(=O)OC(C)C)C)COC)COC)C)C |
|---|---|
| InChI | Not listed |
| Formula from structure | C43H52N10O19S4 |
| Molecular weight from structure | 1141.2 g/mol |
03Stereochemistry
The published structure contains 4 defined and 2 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 | No CAS number is available for an exact comparison. |
|---|---|---|
| SCOMET | NO EXACT REVIEWED CAS MATCH | No CAS number is available for an exact comparison. |
| 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
No parent compound is listed.
Other names
- Cefpodoxime Proxetil Dimer Impurity 1
- Cefpodoxime Proxetil Impurity 13
- bis(1-((isopropoxycarbonyl)oxy)ethyl) 7,7'-(((2Z,2'Z)-2,2'-((carbonylbis(azanediyl))bis(thiazole-2,4-diyl))bis(2-(methoxyimino)acetyl))bis(azanediyl))(6R,6'R,7R,7'R)-bis(3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate)
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 71314616
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.
