Indole-3-carbaldehyde, 3-Indolylformaldehyde, 3-Formylindole, NSC 10118, β-Indolylaldehyde
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
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MDL number:
PubChem Substance ID:

Quality Level




193-198 °C (lit.)

SMILES string




InChI key


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General description

Indole-3-carboxaldehyde can undergo Schiff bases condensation to form multifunctional silica nano-vehicles and magnetic nanoparticles.


Reactant for preparation of:
  • Analgesic agents
  • Hypoglycemic agents
  • Tryptophan dioxygenase inhibitors pyridyl-ethenyl-indoles as potential anticancer immunomodulators
  • Antibacterial and antifungal agents
  • Antiamoebic and cytotoxic agents
  • Inhibitors of the Dengue virus protease with antiviral activity in cell-culture
  • Curcumin analogues as possible anti-proliferative & anti-inflammatory agents
  • Inhibitors of Bcl-2 family proteins
  • Inhibitors of the C-terminal domain of RNA Polymerase II as antitumor agents
  • Inhibitors of TNF-α and IL-6 with anti-tubercular activity
Indole-3-carboxaldehyde was used to prepare analogs of the indole phytoalexin cyclobrassinin with NR1R2 group. It was also used as the starting material for the synthesis of higher order indoles including isoindolo[2,1-a]indoles, aplysinopsins, and 4-substituted-tetrahydrobenz[cd]indoles.


5 g in glass bottle
25 g in poly bottle

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Qiu-Yun Chen et al.
Colloids and surfaces. B, Biointerfaces, 114, 158-163 (2013-11-05)
Multifunctional silica nano-vehicles (SiO2@indol-IL) and magnetic nanoparticles (Fe3O4@indol-IL) were constructed through the Schiff bases condensation of indole-3-carboxaldehyde and 4-acetyl-N-allyl pyridinium chloride (ILs) with the amine groups of silica and magnetic nanoparticles. SiO2@indol-IL can inhibit the proliferation of HepG-2 cells in...
Indian J. Chem. B, 33, 4-4 (1994)
Heterocycles, 38, 1479-1479 (1994)
Mariana Budovská et al.
Bioorganic & medicinal chemistry, 21(21), 6623-6633 (2013-09-10)
An effective synthesis of analogs of the indole phytoalexin cyclobrassinin with NR1R2 group instead of SCH3 was developed starting from indole-3-carboxaldehyde. The target compounds were prepared by spirocyclization of 1-Boc-thioureas with the formation of isolable spiroindoline intermediates, followed by the...
Tian-Lin Yang et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 67(2), 568-571 (2006-09-22)
A new Schiff base ligand with tripodal structure, N,N',N''-tri-(3-indolemethanal)-triaminotriethylamine (L), and its complex with terbium was synthesized. The complex was characterized by element analysis, IR spectra, mass spectra, thermal analysis and molar conductivity. The terbium ion was found to coordinate...

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