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Home/Compounds/Research Reagent/Indole-3-carboxylic acid
C9H7NO2
161.16 g/mol
Research ReagentWarning

Indole-3-carboxylic acid

CAS771-50-6EC212-231-6
Category
Research Reagent
Compound Class
Heterocycle
Primary Use
Research Compound

Indole-3-carboxylic acid is a chemical compound featuring an indole ring with a carboxylic acid group. It is primarily used as a research reagent for alkaloid synthesis in laboratory settings.

research reagent for alkaloid synthesis

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Related Compounds

SimilarStructure SimilarSimilarity 0.79

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4-Bromobenzonitrile-d4

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Safety Reference

Harmful
Harmful
Warning
H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Customs Tariff Classification

The international HS code for Indole-3-carboxylic acid (CAS 771-50-6) is 2933.99.

HS code (international, 6-digit)

2933.99

EU CN code (8-digit)

2933 99 80

Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers
IUPAC Name

1H-indole-3-carboxylic acid

InChIKey

KMAKOBLIOCQGJP-UHFFFAOYSA-N

SMILES

C1=CC=C2C(=C1)C(=CN2)C(=O)O

Synonyms (28)
  • ICO
  • Tropisetron Hydrochloride EP Impurity B
  • Tropisetron Hydrochloride Imp. B (EP); Tropisetron Imp. B (EP); 1H-Indole-3-carboxylic Acid; Tropisetron Hydrochloride Impurity B; Tropisetron Impurity B
  • Tropisetron impurity B, European Pharmacopoeia (EP)
  • 1H-Indole-3-carboxylic acid
  • 3-Carboxyindole
  • 3-Indolecarboxylate
  • 3-Indolecarboxylic acid
  • 3-Indoleformate
  • 3-Indoleformic acid
  • 3-Indolylcarboxylate
  • 3-Indolylcarboxylic acid
  • 3-carboxyl-indole
  • 3-indolecarboxylic
  • 4ahu
  • AB00443727-03
  • AQ-776/40182782
  • INDOLE-.BETA.-CARBOXYLIC ACID
  • Indole - 3 Carboxylate
  • Indole-3-carboxylic acid
  • SDCCGMLS-0065969.P001
  • Tropisetron impurity B CRS
  • beta-Indolylcarboxylic acid
  • indolyl-3-carboxylic acid

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