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Sigma-Aldrich

Indole-4-carboxylic acid

98%

Synonym(s):

4-Carboxyindole

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About This Item

Empirical Formula (Hill Notation):
C9H7NO2
CAS Number:
Molecular Weight:
161.16
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

98%

form

powder

mp

213-214 °C (lit.)

SMILES string

OC(=O)c1cccc2[nH]ccc12

InChI

1S/C9H7NO2/c11-9(12)7-2-1-3-8-6(7)4-5-10-8/h1-5,10H,(H,11,12)

InChI key

ROGHUJUFCRFUSO-UHFFFAOYSA-N

Application

  • Reactant for preparation of substituted indole derivatives as histamine H3 antagonists
  • Reactant for preparation of potent and selective inhibitors of human reticulocyte 15-lipoxygenase-1
  • Reactant for preparation of inhibitors of Gli1-mediated transcription in Hedgehog pathway
  • Reactant for preparation of pyridinyl carboxylates as SARS-CoV 3CL proinhibitors
  • Reactant for preparation of substituted bipiperidinylmethyl amides as CCR3 membrane binding ligands
  • Reactant for preparation of indole amide hydroxamic acids as potent inhibitors of histone deacetylases
  • Reactant for preparation of 2-[[[4′-chloro-[1,1-biphenyl]-4-yl]thio]methyl]-N-hydroxybutanamide derivatives as specific metalloproteinase
tert-butyl esters of indole and pyrrolecarboylic acids are readily prepared by direct treatment with N,N-dimethylformamide di-tert-butyl acetal (Cat. No. 395005).

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Synthetic Communications, 34, 3691-3691 (2005)
SOLVENT EFFECTS ON THE ELECTRONIC ABSORPTION AND FLUORESCENCE SPECTRA OF INDOLE?4?CARBOXYLIC ACID: PROTOTROPIC EQUILIBRIA IN AQUEOUS SOLUTIONS.
Krishnamurthy M.
Photochemistry and Photobiology, 45(3), 359-364 (1987)

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