
Chemical identity
Cabazitaxel Impurity (DiTroc)
CAS 95603-44-4 · C35H38Cl6O14
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-09096 |
|---|---|
| PubChem CID | 10197390 |
| Name | Cabazitaxel Impurity (DiTroc) |
| CAS RN | 95603-44-4 |
| Molecular formula | C35H38Cl6O14 |
| Molecular weight | 895.38 g/mol |
| IUPAC name | (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12b-acetoxy-9,11-dihydroxy-4a,8,13,13-tetramethyl-5-oxo-4,6-bis(((2,2,2-trichloroethoxy)carbonyl)oxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-1H-7,11-methanocyclodeca[3,4]benzo[1,2-b]oxet-12-yl benzoate |
| InChIKey | QUWPKVRCMDIMRN-UGDYBXLTSA-N |
02Structure identifiers

Structure facts for this exact identity.
| Molecular formula | C35H38Cl6O14 |
|---|---|
| InChIKey | QUWPKVRCMDIMRN-UGDYBXLTSA-N |
| Ring count | 5 |
| Defined stereocentres | 9 |
| Unassigned stereocentres | 0 |
| SMILES | CC1=C2[C@H](C(=O)[C@@]3([C@H](C[C@@H]4[C@]([C@H]3[C@@H]([C@@](C2(C)C)(C[C@@H]1O)O)OC(=O)C5=CC=CC=C5)(CO4)OC(=O)C)OC(=O)OCC(Cl)(Cl)Cl)C)OC(=O)OCC(Cl)(Cl)Cl |
|---|---|
| InChI | InChI=1S/C35H38Cl6O14/c1-16-19(43)12-33(48)26(54-27(45)18-9-7-6-8-10-18)24-31(5,25(44)23(22(16)30(33,3)4)53-29(47)51-15-35(39,40)41)20(52-28(46)50-14-34(36,37)38)11-21-32(24,13-49-21)55-17(2)42/h6-10,19-21,23-24,26,43,48H,11-15H2,1-5H3/t19-,20-,21+,23+,24-,26-,31+,32-,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.
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 95603-44-4 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 95603-44-4 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
Cabazitaxel
View API and impurity familyOther names
- Cabazitaxel Impurity 34
- [(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-Acetyloxy-1,15-dihydroxy-10,14,17,17-tetramethyl-11-oxo-9,12-bis(2,2,2-trichloroethoxycarbonyloxy)-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate
- (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12b-Acetoxy-9,11-dihydroxy-4a,8,13,13-tetramethyl-5-oxo-4,6-bis(((2,2,2-trichloroethoxy)carbonyl)oxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-1H-7,11-methanocyclodeca[3,4]benzo[1,2-b]oxet-12-yl benzoate
- QUWPKVRCMDIMRN-UGDYBXLTSA-N
- 7,10-Di(2,2,2-trichloroethoxycarbonyl)-10-deacetylbaccatin III
- orb419490
- 7,10-DiTroc-10-Deacetyl Baccatin III
- AC-30176
- Carbonic Acid (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12b-(acetyloxy)-12-(benzoyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-9,11-dihydroxy-4a,8,13,13-tetramethyl-5-oxo-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxete-4,6-diyl bis(2,2,2-trichloroethyl) E
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 10197390
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.
