
Chemical identity
3-Deamino 3-Hydroxy Linagliptin
CAS 1620278-39-8 · C25H27N7O3
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-02505 |
|---|---|
| PubChem CID | 72202338 |
| Name | 3-Deamino 3-Hydroxy Linagliptin |
| CAS RN | 1620278-39-8 |
| Molecular formula | C25H27N7O3 |
| Molecular weight | 473.53 g/mol |
| IUPAC name | (S)-7-(but-2-yn-1-yl)-8-(3-hydroxypiperidin-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-1H-purine-2,6(3H,7H)-dione |
| InChIKey | QAHWUJQHJPWQGS-KRWDZBQOSA-N |
02Structure identifiers

The parsed structure contains 5 rings, includes aromatic atoms, includes aliphatic carbon, has 1 defined stereocentre. These statements are calculated from the published structure string.
| Defined stereocentres | 1 |
|---|---|
| Unassigned stereocentres | 0 |
| Ring count | 5 |
| Secondary amines | 0 |
| Tertiary amines | 1 |
| N-methyl amine sites | 0 |
| SMILES | CC#CCN1C2=C(N=C1N3CCC[C@@H](C3)O)N(C(=O)N(C2=O)CC4=NC5=CC=CC=C5C(=N4)C)C |
|---|---|
| InChI | Not listed |
| Formula from structure | C25H27N7O3 |
| Molecular weight from structure | 473.53 g/mol |
03Stereochemistry
The published structure contains 1 defined and 0 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.
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 1620278-39-8 has no exact match in the reviewed published schedule. |
|---|---|---|
| SCOMET | NO EXACT REVIEWED CAS MATCH | CAS 1620278-39-8 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
Linagliptin
View API and impurity familyOther names
- 3-De(amine)-3-hydroxy linagliptin, (3S)-
- 1620278-39-8
- CD-1790
- UNII-L920390BEX
- L920390BEX
- 7-but-2-ynyl-8-(3s-hydroxy-piperidin-1-yl)-3-methyl-1-(4-methyl-quinazolin-2-ylmethyl)-3,7-dihydro-purine-2,6-dione
- 7-but-2-ynyl-8-[(3S)-3-hydroxypiperidin-1-yl]-3-methyl-1-[(4-methylquinazolin-2-yl)methyl]purine-2,6-dione
- Linagliptin Impurity 132
- LINAGLIPTIN METABOLITE M474(1)
- Q27282854
- (S)-7-(but-2-yn-1-yl)-8-(3-hydroxypiperidin-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione
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 72202338
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.
