3-Indolepropionic acid

ReagentPlus®, 99%

IPA, NSC 47831, 3-(3-Indolyl)propanoic acid, Indole-3-propionic acid, NSC 3252
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
EC Number:
MDL number:
PubChem Substance ID:
Pricing and availability is not currently available.

Quality Level

product line





134-135 °C (lit.)


ethanol: soluble 50 mg/mL, clear, yellow to orange

SMILES string




InChI key


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General description

3-Indolepropionic acid is an effective inhibitor of aggregation of misfolded β-amyloid protein (Abeta). Three-component one-pot procedure has been reported to assemble 3-indolepropionic acids.


Reactant for preparation of:
  • Fluorescent analogues of strigolactones
  • Anti-tumor agents
  • Melanocortin receptors ligands
  • Immunosuppressive agents
  • Iinhibitors of hepatitis C virus
  • Histamine H4 receptor agonists
  • NR2B/NMDA receptor antagonists
  • CB1 Antagonist for the treatment of obesity
  • Antibacterial agents
  • Inhibitor of TGF-β receptor binding


1, 10 g in glass bottle

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

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

Xun Cheng et al.
Analytical chemistry, 77(21), 7012-7015 (2005-11-01)
Alzheimer's disease is the most common cause of the loss of cognitive function among the elderly, and the aggregation and deposition of misfolded beta-amyloid protein (Abeta) contribute to this progressive central nervous system decline. Therefore, compounds that inhibit or even...
Mauro F A Adamo et al.
Organic letters, 9(2), 303-305 (2007-01-16)
A three-component one-pot procedure (3-MC) was developed to assemble 3-indolepropionic acids from commercially available materials. This new methodology affords the title compounds in high yields and without the use of chromatography. [reaction: see text].
K L Borden et al.
European journal of biochemistry, 202(2), 459-470 (1991-12-05)
The antirepressor indole 3-propanoate has been shown by X-ray crystallography to bind in a different orientation compared with the natural corepressor for the tryp repressor, L-tryptophan (Lawson, C.L. & Sigler, P. B. (1988) Nature 333, 869-871). This suggests a simple...
Burkhard Poeggeler et al.
PloS one, 5(4), e10206-e10206 (2010-04-28)
Aging is a multi-factorial process, however, it is generally accepted that reactive oxygen species (ROS) are significant contributors. Mitochondria are important players in the aging process because they produce most of the cellular ROS. Despite the strength of the free-radical...
F Mandelbaum-Shavit et al.
Antimicrobial agents and chemotherapy, 35(12), 2526-2530 (1991-12-01)
Indole-3-propionic acid (IPA), a phytohormone derivative, is a potent inhibitor of growth of Legionella pneumophila cultivated extracellularly in a chemically defined hypotonic medium and intracellularly in human monocytes. The inhibitory activity turns into bactericidal activity with increasing concentrations. The susceptibility...

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