
Chemical identity
Bacitracin EP Impurity A
CAS 149146-34-9 · C64H99N17O16S
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-07594 |
|---|---|
| PubChem CID | 172866315 |
| Name | Bacitracin EP Impurity A |
| CAS RN | 149146-34-9 |
| Molecular formula | C64H99N17O16S |
| Molecular weight | 1394.66 g/mol |
| IUPAC name | (R)-5-(((2S,3S)-1-(((3S,6R,9S,12R,15S,18R,21S)-9-((1H-imidazol-5-yl)methyl)-3-(2-amino-2-oxoethyl)-18-(3-aminopropyl)-12-benzyl-6-(carboxymethyl)-15-isopropyl-2,5,8,11,14,17,20-heptaoxo-1,4,7,10,13,16,19-heptaazacyclopentacosan-21-yl)amino)-3-methyl-1-oxopentan-2-yl)amino)-4-((S)-2-((R)-2-((S)-1-amino-2-methylpropyl)-4,5-dihydrothiazole-4-carboxamido)-4-methylpentanamido)-5-oxopentanoic acid |
| InChIKey | CHLOWYWCJJLLHA-NXISNYNLSA-N |
02Structure identifiers

The parsed structure contains 4 rings, includes aromatic atoms, includes aliphatic carbon, has 13 defined stereocentres. These statements are calculated from the published structure string.
| Defined stereocentres | 13 |
|---|---|
| Unassigned stereocentres | 0 |
| Ring count | 4 |
| Secondary amines | 0 |
| Tertiary amines | 0 |
| N-methyl amine sites | 0 |
| SMILES | CC[C@H](C)[C@@H](C(=O)N[C@H]1CCCCNC(=O)[C@@H](NC(=O)[C@H](NC(=O)[C@@H](NC(=O)[C@H](NC(=O)[C@@H](NC(=O)[C@H](NC1=O)CCCN)C(C)C)CC2=CC=CC=C2)CC3=CN=CN3)CC(=O)O)CC(=O)N)NC(=O)[C@@H](CCC(=O)O)NC(=O)[C@H](CC(C)C)NC(=O)[C@@H]4CSC(=N4)[C@H](C(C)C)N |
|---|---|
| InChI | Not listed |
| Formula from structure | C64H99N17O16S |
| Molecular weight from structure | 1394.66 g/mol |
03Stereochemistry
The published structure contains 13 defined and 0 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 149146-34-9 has no exact match in the reviewed published schedule. |
|---|---|---|
| SCOMET | NO EXACT REVIEWED CAS MATCH | CAS 149146-34-9 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
Bacitracin
View API and impurity familyOther names
No synonyms are listed.
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 172866315
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.
