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A18627 Indole-5-carboxylic acid, 98%

CAS Number

Stock No. Size Price ($) Quantity Availability
A18627-03 1g 36.90
A18627-06 5g 119.00
A18627-14 25g 464.00
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Indole-5-carboxylic acid, 98%


Chemical Properties

Formula Weight
Melting point
Storage & Sensitivity
Ambient temperatures.
Soluble in ethanol (50 mg/ml), dimethyl sulfoxide and methanol.


Indole-5-carboxylic acid is the suitable reagent used to study the intermolecular excited state proton transfer in indole-2-carboxylic acid and indole-5-carboxylic acid in various solvents in acidic, basic, and neutral media by steady state and time resolved fluorescence spectroscopy. It may be used in the electrochemical synthesis of poly(indole-5-carboxylic acid) (PICA) films. Also used as reactant for preparation of tryptophan dioxygenase inhibitors pyridyl-ethenyl-indoles, as potential anticancer immunomodulators, synthesis of indirubin derivatives and amide conjugates with ketoprofen, as inhibitors of Gli1-mediated transcription in Hedgehog pathway.


Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Store away from oxidizing agent.

Literature References

Eduard Dolusi? et. al. Tryptophan 2,3-dioxygenase (TDO) inhibitors. 3-(2-(pyridyl)ethenyl)indoles as potential anticancer immunomodulators. Journal of medicinal and pharmaceutical chemistry, 2011, 54 (15), 5320-5334.

Mikaël Brasse; Jonathan A Ellman; Robert G Bergman. A facile, metal- and solvent-free, autoxidative coupling of quinolines with indoles and pyrroles. Chemical Communications, 2011, 47 (17), 5019-5021.

GHS Hazard and Precautionary Statements

Hazard Statements: H302-H312-H315-H319-H335

Harmful if swallowed. Harmful in contact with skin. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P264b-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P312-P330-P332+P313-P337+P313-P362-P501c

Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Rinse mouth. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

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