Description

1-Butanephosphonic Acid CAS NO 3321-64-0 is a versatile organophosphorus compound characterized by a phosphonic acid group attached to a butyl chain. This structure makes it a valuable intermediate and ligand in various chemical synthesis and industrial processes. It is primarily sought after by manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for applications requiring precise metal chelation or as a building block for more complex molecules.

Application

• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring phosphonate-based bioisosteres or prodrugs.
• Agrochemical Synthesis: Serves as a key precursor in the manufacture of herbicides, plant growth regulators, and other crop protection agents.
• Metal Chelation & Catalysis: Acts as an effective ligand for metal ions, finding use in water treatment, metal extraction, and as a component in homogeneous catalyst systems.
• Scale & Corrosion Inhibitors: Incorporated into formulations for industrial water systems and cooling towers to prevent scale formation and metal corrosion.
• Polymer Modification: Employed as a monomer or additive to impart flame retardancy, adhesion promotion, or other specific properties to polymeric materials.
• Research & Development: Utilized in academic and industrial R&D for exploring new synthetic methodologies and material science applications.

Basic Information

Product Name	1-Butanephosphonic Acid
CAS No.	3321-64-0
Molecular Formula	C₄H₁₁O₃P
Molecular Weight	138.10 g/mol
Synonyms	Butylphosphonic Acid; n-Butylphosphonic Acid; 1-Butylphosphonic Acid; Butanephosphonic Acid; Monobutylphosphonic Acid; Phosphonobutanoic Acid; BPA; n-Butanephosphonic Acid
EINECS	222-035-5

Quality Control

Our 1-Butanephosphonic Acid is manufactured under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. A Certificate of Analysis (COA) detailing the results is provided with every shipment to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases and oxidizing agents. Due to its acidic nature, ensure containers are made of compatible materials and are clearly labeled.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Melting Point	95 - 105 °C

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.