
Chemical identity
Clindamycin Pentadecanoate
CAS 1123211-67-5 · C33H61ClN2O6S
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-11115 |
|---|---|
| PubChem CID | 156614159 |
| Name | Clindamycin Pentadecanoate |
| CAS RN | 1123211-67-5 |
| Molecular formula | C33H61ClN2O6S |
| Molecular weight | 649.36 g/mol |
| IUPAC name | [(2R,3R,4S,5R,6R)-6-[(1S,2S)-2-chloro-1-[[(2S,4R)-1-methyl-4-propylpyrrolidine-2-carbonyl]amino]propyl]-4,5-dihydroxy-2-methylsulfanyloxan-3-yl] pentadecanoate |
| InChIKey | YQVJBMURKHNOBB-VYUCIWTASA-N |
02Structure identifiers

Structure facts for this exact identity.
| Molecular formula | C33H61ClN2O6S |
|---|---|
| InChIKey | YQVJBMURKHNOBB-VYUCIWTASA-N |
| Ring count | 2 |
| Defined stereocentres | 9 |
| Unassigned stereocentres | 0 |
| SMILES | CCCCCCCCCCCCCCC(=O)O[C@@H]1[C@H]([C@H]([C@H](O[C@@H]1SC)[C@@H]([C@H](C)Cl)NC(=O)[C@@H]2C[C@H](CN2C)CCC)O)O |
|---|---|
| InChI | InChI=1S/C33H61ClN2O6S/c1-6-8-9-10-11-12-13-14-15-16-17-18-20-26(37)41-31-29(39)28(38)30(42-33(31)43-5)27(23(3)34)35-32(40)25-21-24(19-7-2)22-36(25)4/h23-25,27-31,33,38-39H,6-22H2,1-5H3,(H,35,40)/t23-,24+,25-,27+,28+,29-,30+,31+,33+/m0/s1 |
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
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 1123211-67-5 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 1123211-67-5 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
Clindamycin
View API and impurity familyOther names
- L-Threo-alpha-D-galacto-octopyranoside, methyl 7-chloro-6, 7, 8-trideoxy-6-((((2S, 4R)-1-methyl-4-propyl-2-pyrrolidinyl)carbonyl)amino)-1-thio-, 2-pentadecanoate
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 156614159
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.
