Description

p-Tolyl-Phosphonic Acid is an organophosphorus compound that serves as a versatile building block and intermediate in advanced chemical synthesis. Its unique structure, featuring both a phosphonic acid group and a tolyl aromatic ring, makes it valuable for creating functional materials with specific properties. This chemical is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop new active ingredients or modify material surfaces.

Application

• Pharmaceutical Intermediate: Used in the synthesis of novel drug candidates, particularly those targeting bone-related disorders or requiring phosphonate-based bioisosteres.
• Agrochemical Synthesis: Serves as a key precursor for developing herbicides, plant growth regulators, and other crop protection agents with systemic activity.
• Ligand and Catalyst Preparation: Employed in the creation of metal-organic frameworks (MOFs), coordination complexes, and asymmetric catalysis ligands.
• Surface Modification Agent: Used to functionalize metals, metal oxides, and polymers to improve adhesion, corrosion resistance, or biocompatibility.
• Flame Retardant Synergist: Incorporated into polymer formulations to enhance flame-retardant properties, often in combination with other phosphorus compounds.
• Research & Development: A valuable tool in academic and industrial R&D for exploring new reactions in organophosphorus chemistry and material science.

Basic Information

Item	Detail
Product Name	p-Tolyl-Phosphonic Acid
CAS No.	3366-72-1
Molecular Formula	C7H9O3P
Molecular Weight	172.12 g/mol
Synonyms	(4-Methylphenyl)phosphonic acid; p-Toluenephosphonic acid; 4-Methylbenzenephosphonic acid; 4-Tolylphosphonic acid; Phosphonic acid, P-(4-methylphenyl)-; P-Tolylphosphonic Acid; PTMPA; 4-Methylphenylphosphonic acid
EINECS	222-149-8

Quality Control

Our p-Tolyl-Phosphonic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity assessment and NMR/IR for structural confirmation, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are available upon request, providing full traceability and compliance assurance for your regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	< 20 ppm

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