Description

4-Hydroxybenzylphosphonic Acid is a versatile organophosphorus compound featuring both phenolic and phosphonic acid functional groups. This bifunctional structure makes it a valuable intermediate for synthesizing complex molecules and materials with tailored properties. It is particularly sought after by researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries for applications ranging from drug development to metal chelation and surface modification.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly those targeting bone-related disorders or requiring specific metal-binding properties.
• Agrochemical Synthesis: Used in the production of advanced herbicides, plant growth regulators, and fungicides that leverage its phosphonate moiety.
• Metal Chelation & Scale Inhibition: Effective chelating agent for metal ions in industrial water treatment, detergent formulations, and as a corrosion or scale inhibitor.
• Polymer & Material Science: Monomer or additive for creating functional polymers, resins, and coatings with enhanced adhesion, flame retardancy, or biocompatibility.
• Ligand in Catalysis: Serves as a ligand precursor for homogeneous catalysis, facilitating various organic transformations.
• Research & Development: Essential reagent in chemical research for studying enzyme inhibition, developing diagnostic agents, and creating novel molecular architectures.

Basic Information

Item	Details
Product Name	4-Hydroxybenzylphosphonic Acid
CAS No.	90001-07-3
Molecular Formula	C7H9O4P
Molecular Weight	188.12 g/mol
Synonyms	p-Hydroxybenzylphosphonic Acid; (4-Hydroxyphenyl)methylphosphonic Acid; PHBPA; 4-Hydroxybenzylphosphonate; Benzylphosphonic acid, 4-hydroxy-; (4-Hydroxybenzyl)phosphonic acid
EINECS	Contact for details

Quality Control

Our 4-Hydroxybenzylphosphonic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets exacting specifications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance with your project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 2.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm

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