
Chemical identity
Lurbinectedin Dihydroxy Impurity
CAS not listed · C40H44N4O10S
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-31994 |
|---|---|
| PubChem CID | 154733422 |
| Name | Lurbinectedin Dihydroxy Impurity |
| CAS RN | Not listed |
| Molecular formula | C40H44N4O10S |
| Molecular weight | 772.86 g/mol |
| IUPAC name | Dihydroxy Impurity of Lurbinectedin |
| InChIKey | MHPHVBHUGGIALW-HPTGFVDJSA-N |
02Structure identifiers

Structure facts for this exact identity.
| Molecular formula | C40H44N4O10S |
|---|---|
| InChIKey | MHPHVBHUGGIALW-HPTGFVDJSA-N |
| Ring count | 10 |
| Defined stereocentres | 7 |
| Unassigned stereocentres | 0 |
| SMILES | CC1=CC2=C([C@@H]3[C@@H]4[C@H]5C6=C(C(=C(C(=C6[C@@H](N4[C@H]([C@H](C2)N3C)O)COC(=O)[C@@]7(CS5)C8=C(CCN7)C9=C(N8)C=CC(=C9)OC)O)O)C)OC(=O)C)C(=C1OC)O |
|---|---|
| InChI | InChI=1S/C40H44N4O10S/c1-16-11-19-12-24-38(49)44-25-14-53-39(50)40(37-21(9-10-41-40)22-13-20(51-5)7-8-23(22)42-37)15-55-36(30(44)29(43(24)4)26(19)33(48)34(16)52-6)28-27(25)32(47)31(46)17(2)35(28)54-18(3)45/h7-8,11,13,24-25,29-30,36,38,41-42,46-49H,9-10,12,14-15H2,1-6H3/t24-,25-,29+,30+,36+,38-,40+/m0/s1 |
03Stereochemistry
The published structure contains 7 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 | No CAS number is available for an exact comparison. Generic and analogue entries were not evaluated. |
|---|---|---|
| SCOMET | NOT FOUND IN REVIEWED CAS ENTRIES | No CAS number is available for an exact comparison. 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
Lurbinectedin
View API and impurity familyOther names
No synonyms are listed.
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 154733422
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.
