Indole-3-propionic acid

≥97.0% (T)

NSC 47831, IPA, 3-(3-Indolyl)propanoic acid, NSC 3252, 3-(3-Indolyl)propionic acid
Empirical Formula (Hill Notation):
CAS Number:
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EC Number:
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PubChem Substance ID:

Quality Level


≥97.0% (T)

SMILES string




InChI key


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General description

Indole-3-propionic acid can be obtained from tryptophan by deamination reaction.


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
Indole-3-propionic acid may be used in the synthesis of oxindole-3-propionic acid via reaction with N-bromosuccinimide in acetic acid followed by treatment with H2/Pd catalyst.


100 g in poly bottle
25 g in glass bottle

Biochem/physiol Actions

Studied as an adjunct to improve perfusion after liver transplant.


13 - Non Combustible Solids

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Wanguo Wei et al.
Bioorganic & medicinal chemistry letters, 19(24), 6926-6930 (2009-11-10)
New small molecule inhibitors of HCV were discovered by screening a small library of indoline alkaloid-type compounds. An automated assay format was employed which allowed identification of dimerization inhibitors of core, the capsid protein of the virus. These compounds were...
Francis Giraud et al.
Bioorganic & medicinal chemistry letters, 20(17), 5203-5206 (2010-07-27)
N-aryl-3-(indol-3-yl)propanamides were synthesized and their immunosuppressive activities were evaluated. This study highlighted the promising potency of 3-[1-(4-chlorobenzyl)-1H-indol-3-yl]-N-(4-nitrophenyl)propanamide 15 which exhibited a significant inhibitory activity on murine splenocytes proliferation assay in vitro and on mice delayed-type hypersensitivity (DTH) assay in vivo.
Ragan, J. A.; et al.
Organic Process Research & Development, 13, 186-186 (2009)
Peng Xu et al.
Bioorganic & medicinal chemistry letters, 17(12), 3330-3334 (2007-04-27)
A series of novel acylide derivatives have been synthesized from erythromycin A via a facile procedure. By applying this procedure, cyclic carbonation to C-11,12 position, acylation to C-3 hydroxyl, and deprotection provided the desired acylides. These compounds showed antibacterial activity...
Rosaria Gitto et al.
Bioorganic & medicinal chemistry, 17(4), 1640-1647 (2009-01-23)
A combined ligand-based and structure-based approach has previously allowed us to identify NR2B/NMDA receptor antagonists containing indole scaffold. In order to further explore the main structure activity relationships of this class of derivatives we herein report the design, synthesis and...

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