Chemical identity

1-Desmethyl 2-Methyl Granisetron

CAS not listed · C18H24N4O

01Identity

Identifiers and names for this exact compound. Empty fields are left unassigned.

Lazychem IDLC-41508
PubChem CID29977571
Name1-Desmethyl 2-Methyl Granisetron
CAS RNNot listed
Molecular formulaC18H24N4O
Molecular weight312.4 g/mol
IUPAC name2-methyl-N-[(1R,5S)-9-methyl-9-azabicyclo[3.3.1]nonan-3-yl]indazole-3-carboxamide
InChIKeyINMQDEMSQWWCSB-AGUYFDCRSA-N

02Structure identifiers

2D structurePubChem CID 29977571
Two-dimensional chemical structure of 1-Desmethyl 2-Methyl Granisetron
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 4 rings, includes aromatic atoms, includes aliphatic carbon, has 2 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres2
Unassigned stereocentres1
Ring count4
Secondary amines0
Tertiary amines1
N-methyl amine sites1
SMILESCN1[C@@H]2CCC[C@H]1CC(C2)NC(=O)C3=C4C=CC=CC4=NN3C
InChINot listed
Formula from structureC18H24N4O
Molecular weight from structure312.4 g/mol

03Stereochemistry

The published structure contains 2 defined and 1 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres2Structure assigned
Unassigned centres1Structure unspecified
Assignment statusPartially assignedExact published identity
Tetrahedral upper bound≤ 8Before symmetry reduction

Published same-connectivity configurations

2 records

These records have the same connectivity, molecular formula and protonation layer, but a different complete InChIKey stereochemical layer. Only separately structure-linked records are shown.

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

Shown for structural screening only. These candidates are not confirmed impurities, formation predictions or analytical findings.

Matched amine site1 candidate
Chemical structure of 1-Desmethyl 2-Methyl Granisetron with the matched amine site highlighted in amber
Amber identifies the screened atom and adjacent bonds.
Possible structure candidateUnverified identity
First calculated possible N-nitroso structure derived from 1-Desmethyl 2-Methyl Granisetron, with the new N-nitroso group highlighted in amber
The new N-N=O atoms and bonds are highlighted. No CAS number or compound name is assigned by this calculation.
Candidate 1Possible N-nitroso structural candidate
Calculated formula
C17H21N5O2
Candidate SMILES
Cn1nc2ccccc2c1C(=O)NC1C[C@H]2CCC[C@@H](C1)N2N=O

Interpretation: A structural alert alone does not establish that a nitrosamine forms. Evaluate nitrite sources, amine reagents, pH, temperature, process sequence, purge and analytical evidence.

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 / RCSNO EXACT MATCH FOUNDNo CAS number is available for an exact comparison.
SCOMETNO EXACT REVIEWED CAS MATCHNo CAS number is available for an exact comparison.
Review date2026-08-01Recheck the current official instruments for the material, concentration, activity and date in question.

06Names and relationships

Associated parent compound

No parent compound is listed.

Other names

No synonyms are listed.

Related records from the same parent family

No related records are linked by parent name.

07Documented history

Dated discovery, occurrence, use and issue claims are published only when a suitable primary or government source is available.

No dated history available

No verified discovery, first report, occurrence, use or issue event is currently available for this identity.

08Sources