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Home/Compounds/CAS 590-93-2
Formula C4H4O2MW 84.07Research-use catalog entryCOA/SDS by request

2-Butynoic acid

CAS Number: 590-93-2

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Loading RDKit molecule structure...
InChIKey: LUEHNHVFDCZTGL-UHFFFAOYSA-NC4H4O2 | MW 84.07

Chemical Absolute Identifiers

CAS Number

590-93-2

PubChem CID

68535

Molecular Formula

C4H4O2

Molecular Weight

84.07 g/mol

Exact Mass

84.021129

InChIKey

LUEHNHVFDCZTGL-UHFFFAOYSA-N

IUPAC Name

but-2-ynoic acid

SMILES String

CC#CC(=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

2-Butynoic acid (CAS 590-93-2) is listed in the Pharmaceutical Intermediates portfolio, with molecular formula C4H4O2 and molecular weight 84. 07 g/mol.

Sourcing context

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

Research use context

Intended for research-stage medicinal chemistry and intermediate synthesis workflows.

Documentation needs

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

Applications & Classification

Pharmaceutical Intermediate ResearchResearch intermediateCustom synthesis building blockPharmaceutical intermediate researchResearch chemical sourcingCustom synthesis and catalog availability reviewCOA, SDS, pricing, and fulfillment workflow

Safety & Handling

Handling & Storage

  • Keep container tightly closed and dry.
  • Store in a well-ventilated place.
  • Avoid contact with skin and eyes.

PPE

Respiratory protection if needed

First Aid

  • Do not give anything to an unconscious person.
  • Rinse mouth with water.

Stability / Reactivity

  • Reactivity and reaction stability.
  • Carbon monoxide, carbon dioxide.

Disposal

  • Waste product: Dispose of remaining and non-recyclable solutions to a licensed company.
  • Contact a professional agency with a waste disposal license to handle this substance.
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Fire Fighting

  • If necessary, wear a self-contained breathing apparatus for firefighting.

Accidental Release

  • Do not generate dust when collecting and disposing.
  • Sweep and shovel up.

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

Preliminary Safety Reference

For supplier-issued SDS or COA, submit a documentation request.

Safety Reference / SDS Request

Names & Synonyms / External Identifiers

Chemical Name

2-Butynoic acid

Names & Synonyms

Tetrolic acid1-Propynecarboxylic acid3-Methylpropiolic acid2-butynoicacidbutynoic acid
Show all synonyms
Tetrolsaure2-butynic acid2-butylnoic acidTetrolsA currencyurepropinecarboxylic acidpropynecarboxylic acidsmall carboxylic acid 15SCA15compound 15 [PMID: 21220428]
External Identifiers
EC NUMBER: 209-695-7DSSTOX SUBSTANCE ID: DTXSID4060444CHEMBL ID: CHEMBL4073377UNII: W3AM9ANZ22WIKIDATA ID: Q30693372
Experimental Spectrum References
13C NMR Spectra — Sigma-Aldrich Co. LLC.1H NMR Spectra — Sigma-Aldrich Co. LLC.ATR-IR Spectra — Bio-Rad Laboratories, Inc.FTIR Spectra — Bio-Rad Laboratories, Inc.Raman Spectra — Bio-Rad Laboratories, Inc.
Literature & Patent References
DOI 10.1016/j.bmcl.2017.02.022Potent covalent inhibitors of bacterial urease identified by activity-reactivity profiling.PMID 28236590Potent covalent inhibitors of bacterial urease identified by activity-reactivity profiling.

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

Additional text reference cues are not available for this catalog entry.

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 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 590-93-2

What are the key identifiers for 2-Butynoic acid (CAS 590-93-2)?

2-Butynoic acid is identified by CAS 590-93-2, with molecular formula C4H4O2, molecular weight 84.07, InChIKey LUEHNHVFDCZTGL-UHFFFAOYSA-N.

Can I request a COA for CAS 590-93-2?

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

Can I request supplier SDS for 2-Butynoic acid?

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

Is CAS 590-93-2 available for quotation?

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

Can MolGraph support bulk sourcing or custom synthesis review?

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