Description

Indole-2-carboxylic acid (CAS No. 1477-50-5) is a high-purity organic compound with the molecular formula C₉H₇NO₂ and IUPAC name 1H-indole-2-carboxylic acid. This heterocyclic carboxylic acid features an indole core structure substituted with a carboxyl group at the 2-position, making it a valuable building block in pharmaceutical, agrochemical, and materials science research. Our product is rigorously tested to ensure exceptional quality, with ≥98% purity (HPLC), and is supplied as a fine white to off-white crystalline powder. Suitable for a wide range of synthetic applications, it is packaged under inert conditions to guarantee stability and longevity. Each batch is accompanied by comprehensive analytical documentation including ¹H NMR, HPLC, and MS spectra for verification.

Key Features:

• High purity (≥98% by HPLC)
• Stable crystalline form
• Extensively characterized (NMR, HPLC, MS)
• Packaged under nitrogen for maximum stability
• Research-grade quality for synthetic applications

Properties

• CAS Number: 1477-50-5
• Complexity: 193
• IUPAC Name: 1H-indole-2-carboxylic acid
• InChI: InChI=1S/C9H7NO2/c11-9(12)8-5-6-3-1-2-4-7(6)10-8/h1-5,10H,(H,11,12)
• InChI Key: HCUARRIEZVDMPT-UHFFFAOYSA-N
• LogP: 2.31
• Exact Mass: 161.047678466
• Molecular Formula: C9H7NO2
• Molecular Weight: 161.16
• SMILES: C1=CC=C2C(=C1)C=C(N2)C(=O)O
• Topological: 53.1
• Monoisotopic Mass: 161.047678466
• Physical Description: Solid
• Synonyms: Indole-2-carboxylic acid, 1H-Indole-2-carboxylic acid, 1477-50-5, 2-Carboxyindole, Indol-2-Carboxylic Acid, NSC 16598, EINECS 216-030-4, HCUARRIEZVDMPT-UHFFFAOYSA-, DTXSID20163782, DTXCID9086273, 1H-Indole-2-carboxylic acid (9CI), 216-030-4, inchi=1/c9h7no2/c11-9(12)8-5-6-3-1-2-4-7(6)10-8/h1-5,10h,(h,11,12), 2-Indolecarboxylic acid, MFCD00005611, 2-INDOLYLFORMIC ACID, 1H-indole-2-carboxylicacid, CHEMBL278390, 137497-03-1, N-[4-(2-Pyridinyl)-2-thiazolyl]-2-pyridinamine, Indole-2-carboxylicAcid-13C, 1H-Indolecarboxylic acid, carboxyindole, 2-Indolecarboxylate, ICB, indolecarboxylic acid, indole carboxylic acid, 2-carboxy-1H-indole, 2-indolcarboxylic acid, Spectrum_001485, 2-indol carboxylic acid, SpecPlus_000676, indole_2_carboxylic_acid, Spectrum2_000021, Spectrum3_000943, Spectrum4_001042, Spectrum5_001735, 1H-2-indolecarboxylic acid, SCHEMBL1935, 1H-indol-2-carboxylic acid, Oprea1_557882, KBioGR_001304, KBioSS_001965, MLS002207203, DivK1c_006772, SPECTRUM1502082, SPBio_000081, SCHEMBL1151122, SCHEMBL3483057, SCHEMBL3483232, SCHEMBL4259995, SCHEMBL4491530, SCHEMBL6358504, SCHEMBL8078900, 1H-indole-2-carbonsäure, 2-INDOLE CARBOXYLIC ACID, Indole-2-carboxylic acid, 98%, KBio1_001716, KBio2_001965, KBio2_004533, KBio2_007101, KBio3_002006, CHEBI:169990, HMS1921H22, BCP00082, CS-M1850, HY-I0096, NSC16598, STR02479, BDBM50004955, CCG-39889, NSC-16598, s6228, SBB003953, STK001808, AKOS000121595, AB00454, AC-3062, CG-0515, FI02860, SDCCGMLS-0065971.P001, NCGC00094957-01, NCGC00094957-02, SMR000112260, SY003715, DB-011564, I0332, NS00015137, ST45028103, EN300-16592, AQ-776/40177767, SR-01000392684, SR-01000392684-1, Q27461367, Z56347139, F0451-0610

Application

Indole-2-carboxylic acid serves as a versatile intermediate in organic synthesis, particularly in the preparation of pharmaceutical compounds with indole scaffolds. Researchers utilize this compound in the development of kinase inhibitors and other bioactive molecules targeting neurological and oncological pathways. Its carboxyl functionality allows for straightforward derivatization into amides, esters, and other valuable derivatives for medicinal chemistry programs.

Safety and Hazards

GHS Hazard Statements

• H302 (83.3%): Harmful if swallowed [Warning Acute toxicity, oral]
• H312 (83.3%): Harmful in contact with skin [Warning Acute toxicity, dermal]
• H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Acute Tox. 4 (83.3%)
• Acute Tox. 4 (83.3%)
• Skin Irrit. 2 (100%)
• Eye Irrit. 2A (100%)
• STOT SE 3 (100%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.