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Home/Compounds/CAS 5765-44-6
Formula C4H5NOMW 83.09Research-use catalog entryCOA/SDS by request

5-Methylisoxazole

CAS Number: 5765-44-6

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Loading RDKit molecule structure...
InChIKey: AGQOIYCTCOEHGR-UHFFFAOYSA-NC4H5NO | MW 83.09

Chemical Absolute Identifiers

CAS Number

5765-44-6

PubChem CID

79833

Molecular Formula

C4H5NO

Molecular Weight

83.09 g/mol

Exact Mass

83.037114

InChIKey

AGQOIYCTCOEHGR-UHFFFAOYSA-N

IUPAC Name

5-methyl-1,2-oxazole

SMILES String

CC1=CC=NO1

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

5-Methylisoxazole (CAS 5765-44-6) is listed in the Advanced Chemicals portfolio, with molecular formula C4H5NO and molecular weight 83. 09 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

Handling & Storage

  • Including any incompatibility.
  • Close tightly.
  • Store in a well-ventilated area.

PPE

Respiratory protection if needed

First Aid

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

Stability / Reactivity

  • Reactivity and reaction.
  • Carbon monoxide, carbon dioxide, nitrogen oxides.

Disposal

  • Waste product: Dispose of remaining and non-recyclable solutions to a licensed company.
  • Contact a professional organization 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

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  • Sweep and shovel up.

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

5-Methylisoxazole

Names & Synonyms

Isoxazole, 5-methyl-InChI=1/C4H5NO/c1-4-2-3-5-6-4/h2-3H,1H5-methyl-isoxazole5-Methylisoxazole, AldrichCPRM0813
External Identifiers
EC NUMBER: 227-289-8DSSTOX SUBSTANCE ID: DTXSID4064000UNII: YC2P4IBF1EWIKIDATA ID: Q72492333
Experimental Spectrum References
13C NMR Spectra15N NMR Spectra1D NMR Spectra1H NMR Spectra — Sigma-Aldrich Co. LLC.ATR-IR SpectraFTIR SpectraRaman SpectraVapor Phase IR Spectra

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

5-AminoisoxazoleCAS 14678-05-8
1,2-Oxazol-5-ylmethanolCAS 98019-60-4
1,2-Oxazole-5-carboxylic acidCAS 21169-71-1
4-Bromo-5-methyl-1,2-oxazoleCAS 7064-37-1
4-Methyl-1,2-oxazol-5-amineCAS 35143-75-0

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 14678-05-85-AminoisoxazoleCAS 98019-60-41,2-Oxazol-5-ylmethanolCAS 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 5765-44-6

What are the key identifiers for 5-Methylisoxazole (CAS 5765-44-6)?

5-Methylisoxazole is identified by CAS 5765-44-6, with molecular formula C4H5NO, molecular weight 83.09, InChIKey AGQOIYCTCOEHGR-UHFFFAOYSA-N.

Can I request a COA for CAS 5765-44-6?

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

Can I request supplier SDS for 5-Methylisoxazole?

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

Is CAS 5765-44-6 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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