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Atomfair Butylphosphonic Acid C4H11O3P CAS 3321-64-0

Butylphosphonic Acid (CAS No. 3321-64-0) is a high-purity organophosphorus compound with the molecular formula C4H11O3P , widely utilized in organic synthesis, coordination chemistry, and materials science. This versatile reagent features a phosphonic acid functional group bonded to a butyl chain, offering unique reactivity for metal chelation, surface modification, and catalysis. Our product is rigorously tested to ensure exceptional quality, with batch-specific analytical data (including1H NMR,31P NMR, and HPLC) available upon request. Supplied as a white crystalline solid or colorless solution (custom concentrations available), it’s packaged under inert atmosphere to guarantee stability. Ideal for: Ligand design for transition metal complexes Self-assembled…

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Description

Butylphosphonic Acid (CAS No. 3321-64-0) is a high-purity organophosphorus compound with the molecular formula C4H11O3P, widely utilized in organic synthesis, coordination chemistry, and materials science. This versatile reagent features a phosphonic acid functional group bonded to a butyl chain, offering unique reactivity for metal chelation, surface modification, and catalysis. Our product is rigorously tested to ensure exceptional quality, with batch-specific analytical data (including 1H NMR, 31P NMR, and HPLC) available upon request. Supplied as a white crystalline solid or colorless solution (custom concentrations available), it’s packaged under inert atmosphere to guarantee stability. Ideal for:

  • Ligand design for transition metal complexes
  • Self-assembled monolayer (SAM) formation on metal oxides
  • Modification of nanoparticles and catalytic surfaces
  • Intermediate for flame retardants and specialty polymers

Storage recommendation: Maintain under nitrogen at 2-8°C in tightly sealed containers. Hazard classification: Corrosive (GHS05).

Properties

  • CAS Number: 3321-64-0
  • Complexity: 95.5
  • IUPAC Name: butylphosphonic acid
  • InChI: InChI=1S/C4H11O3P/c1-2-3-4-8(5,6)7/h2-4H2,1H3,(H2,5,6,7)
  • InChI Key: UOKRBSXOBUKDGE-UHFFFAOYSA-N
  • Exact Mass: 138.04458121
  • Molecular Formula: C4H11O3P
  • Molecular Weight: 138.10
  • SMILES: CCCCP(=O)(O)O
  • Topological: 57.5
  • Monoisotopic Mass: 138.04458121
  • Synonyms: Butylphosphonic acid, 1-Butanephosphonic acid, BUTYLPHOSPHONATE, n-butyl phosphonic acid, NSC-38367, CHEBI:41384, PHOSPHONIC ACID, P-BUTYL-, 679-394-7, 3321-64-0, 1-BUTYLPHOSPHONIC ACID, n-Butylphosphonic acid, Phosphonic acid, butyl-, HKC30FCB7P, Butylphosphonicacid, MFCD00012295, NSC 38367, Butylphosphonic acid #, UNII-HKC30FCB7P, SCHEMBL59054, SCHEMBL103934, SCHEMBL103935, SCHEMBL6709493, Butylphosphonic Acid, >/=98%, SCHEMBL11203643, SCHEMBL21385310, DTXSID30186861, NSC38367, AKOS028108505, DB03999, DB-048361, B6044, CS-0451169, NS00071900, D89182, Q27094855

Application

Butylphosphonic Acid serves as an effective coupling agent for surface functionalization of metal oxides like indium tin oxide (ITO) in electronic devices. Researchers employ it as a precursor for phosphonate-based metal-organic frameworks (MOFs) with tunable porosity. In catalysis, it acts as a ligand modifier to enhance selectivity in cross-coupling reactions. The compound also finds use in creating corrosion-resistant coatings through strong chemisorption on oxidized metal surfaces.

Safety and Hazards

GHS Hazard Statements

  • H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

Precautionary Statements

  • P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, and P501

Hazard Classes and Categories

  • Skin Corr. 1B (100%)

If you are interested or have any questions, please contact us at support@atomfair.com

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

Disclaimer

Intended Use & Restrictions

This product is sold exclusively for laboratory research, analytical testing, or non-commercial purposes.

  • Strictly prohibited: Resale, repackaging, or formulation into commercial products.
  • Not approved for human/animal use, diagnostics, or manufacturing (including pharmaceuticals, agrochemicals, or consumer goods).

Patent & Regulatory Compliance

Certain molecules may be protected by active patents or regulatory restrictions.

  • Buyers must independently verify patent status (e.g., via USPTO/EPO/CNIPA) and comply with local laws.
  • Atomfair LLC does not provide legal assurances regarding patent non-infringement or jurisdictional compliance.

Liability Release

By purchasing, the buyer agrees to:

  • Use this product only as permitted by law.
  • Indemnify Atomfair LLC against all claims arising from misuse, patent infringement, or regulatory violations.

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