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Home/Compounds/CAS 71050-40-3
Formula C6H6O3SMW 158.18Research-use catalog entryCOA/SDS by request

4-Methoxythiophene-3-carboxylic acid

CAS Number: 71050-40-3

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Loading RDKit molecule structure...
InChIKey: KEYPLCJVNVJJQK-UHFFFAOYSA-NC6H6O3S | MW 158.18

Chemical Absolute Identifiers

CAS Number

71050-40-3

PubChem CID

2778379

Molecular Formula

C6H6O3S

Molecular Weight

158.18 g/mol

Exact Mass

158.003765

InChIKey

KEYPLCJVNVJJQK-UHFFFAOYSA-N

SMILES String

COc1cscc1C(=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

4-Methoxythiophene-3-carboxylic acid (CAS 71050-40-3) is listed in the Advanced Chemicals portfolio, with molecular formula C6H6O3S and molecular weight 158. 18 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.

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

4-Methoxythiophene-3-carboxylic acid

Names & Synonyms

4-Methoxythiophene-3-CarboxylicAcidMaybridge1_0047133-Thiophenecarboxylic acid, 4-methoxy-4-methoxy-3-thienoic acid4-(Methyloxy)-3-thiophenecarboxylic acid
Show all synonyms
4-methoxythiophene-3-carboxylic acid, AldrichCPR
External Identifiers
EC NUMBER: 874-546-0DSSTOX SUBSTANCE ID: DTXSID20380891CHEMBL ID: CHEMBL1329646CHEBI ID: CHEBI:194869WIKIDATA ID: Q72486206Fr16717

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

4-Methylthiophene-3-carboxylic acidCAS 78071-30-4
5-Chloro-4-methoxythiophene-3-carboxylic acidCAS 133659-14-0
Methyl 4-aminothiophene-3-carboxylateCAS 69363-85-5
3-Methoxythiophene-2-carboxylic acidCAS 60166-83-8
2-(Methoxycarbonyl)thiophene-3-carboxylic acidCAS 115777-72-5

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 78071-30-44-Methylthiophene-3-carboxylic acidCAS 133659-14-05-Chloro-4-methoxythiophene-3-carboxylic acidCAS 69363-85-5Methyl 4-aminothiophene-3-carboxylateCAS 60166-83-83-Methoxythiophene-2-carboxylic acidCAS 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-carboxylateCAS 1018142-22-76-cyclopropyl-1-(2,2-difluoroethyl)-3-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acidCAS 1018144-00-72-(3-Cyclopropyl-6-isopropyl-4-(trifluoromethyl)-1H-pyrazolo[3,4-b]pyridin-1-yl)acetic acid

RFQ questions for CAS 71050-40-3

What are the key identifiers for 4-Methoxythiophene-3-carboxylic acid (CAS 71050-40-3)?

4-Methoxythiophene-3-carboxylic acid is identified by CAS 71050-40-3, with molecular formula C6H6O3S, molecular weight 158.18, InChIKey KEYPLCJVNVJJQK-UHFFFAOYSA-N.

Can I request a COA for CAS 71050-40-3?

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

Can I request supplier SDS for 4-Methoxythiophene-3-carboxylic acid?

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

Is CAS 71050-40-3 available for quotation?

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

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