
Chemical identity
Closantel EP Impurity J
CAS 2731038-10-9 · C44H27Cl3I4N4O4
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-11320 |
|---|---|
| PubChem CID | 169436599 |
| Name | Closantel EP Impurity J |
| CAS RN | 2731038-10-9 |
| Molecular formula | C44H27Cl3I4N4O4 |
| Molecular weight | 1289.69 g/mol |
| IUPAC name | N-[5-Chloro-4-[[4-[[2-chloro-4-[(2-hydroxy-3,5-diiodobenzoyl)amino]-5-methylphenyl]cyanomethyl]phenyl]-(4-chlorophenyl)cyanomethyl]-2-methylphenyl]-2-hydroxy-3,5-diiodobenzamide |
| InChIKey | VTYYZVGCSAUOQZ-UHFFFAOYSA-N |
02Structure identifiers

Structure facts for this exact identity.
| Molecular formula | C44H27Cl3I4N4O4 |
|---|---|
| InChIKey | VTYYZVGCSAUOQZ-UHFFFAOYSA-N |
| Ring count | 6 |
| Defined stereocentres | 0 |
| Unassigned stereocentres | 2 |
| SMILES | O=C(NC1=CC(Cl)=C(C(C2=CC=C(Cl)C=C2)(C3=CC=C(C(C4=CC(C)=C(NC(C5=CC(I)=CC(I)=C5O)=O)C=C4Cl)C#N)C=C3)C#N)C=C1C)C6=CC(I)=CC(I)=C6O |
|---|---|
| InChI | InChI=1S/C44H27Cl3I4N4O4/c1-21-11-29(34(46)17-38(21)54-42(58)30-13-27(48)15-36(50)40(30)56)32(19-52)23-3-5-24(6-4-23)44(20-53,25-7-9-26(45)10-8-25)33-12-22(2)39(18-35(33)47)55-43(59)31-14-28(49)16-37(51)41(31)57/h3-18,32,56-57H,1-2H3,(H,54,58)(H,55,59) |
03Stereochemistry
The published structure contains 0 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 | NOT FOUND IN REVIEWED ENTRIES | CAS 2731038-10-9 was not found in the reviewed exact-identity entries. Generic, class, analogue, salt and isomer provisions were not evaluated. |
|---|---|---|
| SCOMET | NOT FOUND IN REVIEWED CAS ENTRIES | CAS 2731038-10-9 was not found in the reviewed exact-CAS mapping. Generic and analogue entries were not evaluated. |
- Narcotic Drugs and Psychotropic Substances Act, 1985, ScheduleDepartment of Revenue, Government of India · source version 1985-09-16
- Controlled-substances notifications and amendmentsDepartment of Revenue, Government of India · source version 2026-03-11
- Appendix 3, SCOMET ListDirectorate General of Foreign Trade, Government of India · source version 2024-09-02
05Names and relationships
Associated parent compound
Closantel
View API and impurity familyOther names
- Closantel Dimer
- Closantel EP Impurity J/ Closantel Dimer
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 169436599
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.
