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Home/Compounds/CAS 1670-81-1
Formula C9H7NO2MW 161.16Research-use catalog entryCOA/SDS by request

1H-Indole-5-Carboxylic Acid

CAS Number: 1670-81-1

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Loading RDKit molecule structure...
InChIKey: IENZCGNHSIMFJE-UHFFFAOYSA-NC9H7NO2 | MW 161.16

Chemical Absolute Identifiers

CAS Number

1670-81-1

PubChem CID

74280

Molecular Formula

C9H7NO2

Molecular Weight

161.16 g/mol

Exact Mass

161.047678

InChIKey

IENZCGNHSIMFJE-UHFFFAOYSA-N

SMILES String

C1=CC2=C(C=CN2)C=C1C(=O)O

Physical Properties

No physical property values available.

Properties are provided as catalog reference data and may be confirmed through supplier documentation when required.

Catalog Facts

Structural features

1H-Indole-5-Carboxylic Acid (CAS 1670-81-1) is listed in the Advanced Chemicals portfolio, with molecular formula C9H7NO2 and molecular weight 161. 16 g/mol.

Sourcing context

Catalog reference for RFQ preparation, supplier confirmation, and research chemical sourcing review.

Research use context

Intended for research building-block and synthetic chemistry workflows; structure-derived tags include nitrogen-containing heterocycle.

Documentation needs

COA/SDS status, availability, lead time, pack size, and shipment documentation can be confirmed during quotation.

Applications & Classification

Heterocyclic Building BlocksSynthetic ChemistryResearch intermediateCustom synthesis building blockResearch chemical sourcingCustom synthesis and catalog availability reviewCOA, SDS, pricing, and fulfillment workflow

Safety & Handling

Safety and handling reference content is available through documentation requests.

For supplier-issued SDS, request documentation before handling, storage, shipment, or procurement decisions.

Preliminary Safety Reference

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Names & Synonyms / External Identifiers

Chemical Name

1H-Indole-5-Carboxylic Acid

Names & Synonyms

Indole-5-carboxylic acid5-indolecarboxylic acid5-Carboxyindole5-indole carboxylic acid1H-Indole-5-carboxylic acid, radical ion(1+)
Show all synonyms
4ZVindol-5-carboxylic acidIndole 5-carboxylic acidIndole-5-carboxylic acid.1H-Indole-5-carboxylicacidIndole-5-carboxylic acid, ~95% (TLC)I0029AN-584/41714898Indole-5-carboxylic acid, purum, >=98.0% (T)InChI=1/C9H7NO2/c11-9(12)7-1-2-8-6(5-7)3-4-10-8/h1-5,10H,(H,11,12
External Identifiers
EC NUMBER: 216-799-6DSSTOX SUBSTANCE ID: DTXSID80168218CHEMBL ID: CHEMBL2018158CHEBI ID: CHEBI:131778HMDB ID: HMDB0253469METABOLOMICS WORKBENCH ID: 87110WIKIDATA ID: Q27455355WIKIDATA ID: Q72482981Fr14020
Experimental Spectrum References
13C NMR Spectra15N NMR Spectra1D NMR Spectra1H NMR SpectraATR-IR Spectra — Bio-Rad Laboratories, Inc.FTIR SpectraRaman Spectra — Bio-Rad Laboratories, Inc.
Literature & Patent References
DOI 10.1021/acs.jmedchem.6b00660Screening and Design of Inhibitor Scaffolds for the Antibiotic Resistance Oxacillinase-48 (OXA-48) through Surface Plasmon Resonance Screening.PMID 27165692Screening and Design of Inhibitor Scaffolds for the Antibiotic Resistance Oxacillinase-48 (OXA-48) through Surface Plasmon Resonance Screening.DOI 10.1016/j.bmcl.2012.02.057Prospective acetylcholinesterase inhibitory activity of indole and its analogs.PMID 22425563Prospective acetylcholinesterase inhibitory activity of indole and its analogs.

Documentation & Compliance Facts

Compliance Facts

Shipment review: Required

Documentation available by request

Certificate of Analysis (COA): By request

Supplier Safety Data Sheet (SDS): By request

Purity and pack size confirmation: By request

Availability and lead time review: Confirmed by RFQ

Shipment documentation review: By request

For supplier-issued documentation by request, use the RFQ actions on this page.Review preliminary safety reference

What happens after RFQ

  1. 1We review the CAS identity, quantity, and documentation request.
  2. 2We check sourcing options, supplier availability, COA/SDS, purity, pack size, and lead time.
  3. 3We review destination and shipment documentation needs when applicable.
  4. 4We follow up with a quotation or clarification request.

Text Reference Cues

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Non-public related references

1H-indole-6-carboxylic acidCAS 1670-82-2
5-methyl-1H-indole-6-carboxylic acidCAS 1167056-00-9
1H-indole-2,5-dicarboxylic AcidCAS 117140-77-9
2-Methyl-1H-indole-5-carboxylic acidCAS 496946-80-6
5-chloro-1H-indole-6-carboxylic acidCAS 1260858-55-6

Non-public references are shown as text only and do not imply equivalence, availability, or shared use.

Catalog navigation

Related Catalog Entries

Other public CAS pages in this catalog. These links support navigation across additional intermediates and do not imply equivalence, availability, or shared use.

CAS 1670-82-21H-indole-6-carboxylic acidCAS 1167056-00-95-methyl-1H-indole-6-carboxylic acidCAS 117140-77-91H-indole-2,5-dicarboxylic AcidCAS 496946-80-62-Methyl-1H-indole-5-carboxylic acidCAS 1260858-55-65-chloro-1H-indole-6-carboxylic acidCAS 10075-50-05-BromoindoleCAS 1002310-00-0Tert-butyl 1-(2-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethylcarbamateCAS 1005174-17-3(E)-3-(2-Propyl-6-(trifluoromethyl)pyridin-3-yl)acrylic acidCAS 1018125-49-92-(3-Cyclopropyl-6-ethyl-4-(trifluoromethyl)-1H-pyrazolo[3,4-b]pyridin-1-yl)acetic acidCAS 1018128-07-8Isopropyl 4-chloro-2-methylquinoline-6-carboxylate

RFQ questions for CAS 1670-81-1

What are the key identifiers for 1H-Indole-5-Carboxylic Acid (CAS 1670-81-1)?

1H-Indole-5-Carboxylic Acid is identified by CAS 1670-81-1, with molecular formula C9H7NO2, molecular weight 161.16, InChIKey IENZCGNHSIMFJE-UHFFFAOYSA-N.

Can I request a COA for CAS 1670-81-1?

Yes. Submit an RFQ and specify COA requirements. Lot-specific COA depends on supplier confirmation.

Can I request supplier SDS for 1H-Indole-5-Carboxylic Acid?

Yes. Supplier SDS can be requested through the RFQ workflow before handling, storage, shipment, or procurement decisions.

Is CAS 1670-81-1 available for quotation?

Availability, pack size, lead time, and pricing are confirmed through RFQ.

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