
Chemical identity
Acebutolol EP Impurity I
CAS 441019-91-6 · C17H26N2O4
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-04621 |
|---|---|
| PubChem CID | 71315683 |
| Name | Acebutolol EP Impurity I |
| CAS RN | 441019-91-6 |
| Molecular formula | C17H26N2O4 |
| Molecular weight | 322.4 g/mol |
| IUPAC name | N-[3-acetyl-4-[(2RS)-3-(ethylamino)-2-hydroxy- propoxy]phenyl]butanamide |
| InChIKey | BKGQPZMMLAGZCQ-UHFFFAOYSA-N |
02Structure identifiers

Structure facts for this exact identity.
| Molecular formula | C17H26N2O4 |
|---|---|
| InChIKey | BKGQPZMMLAGZCQ-UHFFFAOYSA-N |
| Ring count | 1 |
| Defined stereocentres | 0 |
| Unassigned stereocentres | 1 |
| SMILES | CCCC(=O)NC1=CC(=C(C=C1)OCC(CNCC)O)C(=O)C |
|---|---|
| InChI | InChI=1S/C17H26N2O4/c1-4-6-17(22)19-13-7-8-16(15(9-13)12(3)20)23-11-14(21)10-18-5-2/h7-9,14,18,21H,4-6,10-11H2,1-3H3,(H,19,22) |
03Stereochemistry
The published structure contains 0 defined and 1 unassigned tetrahedral stereocentre. 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.
04Possible N-nitroso structures
A record-level structural review indicates a possible N-nitroso candidate. This is not a confirmed impurity, formation prediction or analytical finding.
A structural result alone does not establish that a nitrosamine forms. A process-specific and analytical assessment is required.
05India 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 441019-91-6 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 441019-91-6 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
06Names and relationships
Associated parent compound
Acebutolol
View API and impurity familyOther names
- rac N-Desisopropyl-N-ethyl Acebutolol
- Acebutolol N-ethyl homolog
- N-(3-Acetyl-4-(3-(ethylamino)-2-hydroxypropoxy)phenyl)butanamide
- +/-)-N-(3-Acetyl-4-(3-(ethylamino)-2-hydroxypropoxy)phenyl)butanamide Butanamide
- N-(3-acetyl-4-(3-(ethylamino)-2-hydroxypropoxy)phenyl)-
- Acebutolol Related Compound I
- UNII-7S5Y42O804
- Acebutolol hydrochloride impurity I [EP]
- N-(3-acetyl-4-(3-(ethylamino)-2-hydroxypropoxy)phenyl)butyramide
- ACEBUTOLOL HYDROCHLORIDE IMPURITY I [EP IMPURITY]
07Documented 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.
08Sources
- S01PubChem compound record, CID 71315683
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.
