
Chemical identity
Buserelin EP Impurity D (Free Base)
CAS not listed · C60H86N16O13
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-31528 |
|---|---|
| PubChem CID | 131847954 |
| Name | Buserelin EP Impurity D (Free Base) |
| CAS RN | Not listed |
| Molecular formula | C60H86N16O13 |
| Molecular weight | 1239.4 g/mol |
| IUPAC name | L-pyroglutamyl-L-histidyl-L-tryptophyl-L-seryl-D-tyrosyl-O-tert-butyl-D-seryl-L-leucyl-L-arginyl-L-proline ethylamide |
| InChIKey | CUWODFFVMXJOKD-WQVASJQXSA-N |
02Structure identifiers

The parsed structure contains 6 rings, includes aromatic atoms, includes aliphatic carbon, has 9 defined stereocentres. These statements are calculated from the published structure string.
| Defined stereocentres | 9 |
|---|---|
| Unassigned stereocentres | 0 |
| Ring count | 6 |
| Secondary amines | 0 |
| Tertiary amines | 0 |
| N-methyl amine sites | 0 |
| SMILES | CCNC(=O)[C@@H]1CCCN1C(=O)[C@H](CCCN=C(N)N)NC(=O)[C@H](CC(C)C)NC(=O)[C@@H](COC(C)(C)C)NC(=O)[C@@H](CC2=CC=C(C=C2)O)NC(=O)[C@H](CO)NC(=O)[C@H](CC3=CNC4=CC=CC=C43)NC(=O)[C@H](CC5=CN=CN5)NC(=O)[C@@H]6CCC(=O)N6 |
|---|---|
| InChI | Not listed |
| Formula from structure | C60H86N16O13 |
| Molecular weight from structure | 1239.4 g/mol |
03Stereochemistry
The published structure contains 9 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.
Published same-connectivity configurations
5 recordsThese records have the same connectivity, molecular formula and protonation layer, but a different complete InChIKey stereochemical layer. Only separately structure-linked records are shown.



Buserelin EP Impurity A (Free Base)
CAS not listed
CUWODFFVMXJOKD-CTUOSLNKSA-N
9 defined, 0 unassigned centres
![Two-dimensional chemical structure of Buserelin EP Impurity B/ [4-D-serine]buserelin (Free Base), CAS 1926163-21-4](/structures/pubchem/132939776-300.png)
Buserelin EP Impurity B/ [4-D-serine]buserelin (Free Base)
CAS 1926163-21-4
CUWODFFVMXJOKD-NGLXBDFUSA-N
9 defined, 0 unassigned centres
![Two-dimensional chemical structure of Buserelin EP Impurity E/ [1-(5-Oxo-D-proline)]buserelin (Free Base), CAS 1926163-20-3](/structures/pubchem/132939778-300.png)
Buserelin EP Impurity E/ [1-(5-Oxo-D-proline)]buserelin (Free Base)
CAS 1926163-20-3
CUWODFFVMXJOKD-UUVJJVFOSA-N
9 defined, 0 unassigned centres
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
Buserelin
View API and impurity familyOther names
- 5-D-tyrosine]Buserelin
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 131847954
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.
