Description

3,4-Dihydrocyclopenta(b)indol-1(2H)-one (CAS No. 61364-20-3) is a high-purity heterocyclic organic compound with the molecular formula C₁₁H₉NO. This bicyclic fused indole derivative features a cyclopentanone ring annulated to an indole scaffold, making it a valuable intermediate in pharmaceutical and agrochemical research. The compound’s rigid polycyclic structure offers unique steric and electronic properties for drug discovery applications. With a molecular weight of 171.20 g/mol, this crystalline solid demonstrates excellent chemical stability under standard laboratory conditions. Our product is rigorously analyzed by HPLC, NMR, and mass spectrometry to ensure ≥98% purity, meeting the exacting standards of medicinal chemistry and materials science research. Available in convenient gram to kilogram quantities with comprehensive analytical data.

Properties

• CAS Number: 61364-20-3
• Complexity: 238
• IUPAC Name: 3,4-dihydro-2H-cyclopenta[b]indol-1-one
• InChI: InChI=1S/C11H9NO/c13-10-6-5-9-11(10)7-3-1-2-4-8(7)12-9/h1-4,12H,5-6H2
• InChI Key: IYZRSIDATZDOPT-UHFFFAOYSA-N
• Exact Mass: 171.068413911
• Molecular Formula: C11H9NO
• Molecular Weight: 171.19
• SMILES: C1CC(=O)C2=C1NC3=CC=CC=C32
• Topological: 32.9
• Monoisotopic Mass: 171.068413911
• Synonyms: 61364-20-3, 3,4-Dihydrocyclopenta[b]indol-1(2H)-one, DTXSID20423717, 3,4-Dihydrocyclopenta(b)indol-1(2H)-one, DTXCID40374555, iyzrsidatzdopt-uhfffaoysa-n, 3,4-dihydro-Cyclopent[b]indol-1(2H)-one, 2,3-dihydrocyclopenta[b]indol-1(4H)-one, 3,4-dihydro-2H-cyclopenta[b]indol-1-one, indolocyclopentanone, 1H,2H,3H,4H-CYCLOPENTA[B]INDOL-1-ONE, SCHEMBL4287798, AKOS014320036, CS-0365821, 1,2,3,4-tetrahydrocyclopent[b]-indol-1-one, D96353

Application

This compound serves as a key building block in the synthesis of bioactive molecules targeting serotonin receptors and kinase inhibitors. Researchers utilize it as a precursor for developing novel antidepressant and antipsychotic drug candidates. The fused indole-core structure makes it particularly valuable for designing PDE4 inhibitors and other CNS-active compounds. In materials science, it finds application as a precursor for organic semiconductors and photochromic materials.

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