Description

Dipotassium 4-Hydroxybutyl Phosphate is an organophosphate salt with significant utility as a versatile chemical intermediate. Its unique structure, combining a phosphate group with a hydroxyl-terminated alkyl chain, makes it valuable for introducing hydrophilic and reactive functionalities into target molecules. This compound is particularly relevant for manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors seeking to develop novel active ingredients or functional additives.

Application

• Pharmaceutical Intermediate: Used in the synthesis of prodrugs and active pharmaceutical ingredients (APIs), particularly those requiring phosphate ester linkages for enhanced bioavailability or targeted delivery.
• Agrochemical Synthesis: Serves as a key building block for creating modern herbicides, fungicides, and plant growth regulators with improved systemic properties.
• Bioconjugation & Linker Chemistry: Employed in the development of bioconjugates, antibody-drug conjugates (ADCs), and diagnostic agents due to its bifunctional reactivity.
• Surface Modification & Functionalization: Acts as a coupling agent or surface modifier for materials, imparting hydrophilicity and phosphate functionality to polymers, nanoparticles, or metal oxides.
• Flame Retardant Synergist: Can be utilized as a component in intumescent flame retardant formulations for plastics and textiles.
• Chelating Agent Precursor: Used in the production of specialized chelating agents and sequestrants for industrial water treatment or detergent formulations.

Basic Information

Product Name	Dipotassium 4-Hydroxybutyl Phosphate
CAS No.	93858-68-5
Molecular Formula	C4H9KO5P • xH2O (Contact for exact hydrate)
Molecular Weight	Anhydrous: 207.18 g/mol
Synonyms	4-Hydroxybutyl Dihydrogen Phosphate Dipotassium Salt; Potassium 4-Hydroxybutyl Phosphate; 1,4-Butanediol Monophosphate Dipotassium Salt; Butane-1,4-diol Monophosphate Dipotassium Salt; Phosphoric Acid Mono(4-hydroxybutyl) Ester Dipotassium Salt; 4-Hydroxybutylphosphoric Acid Dipotassium Salt; K2HPO4(CH2)4OH
EINECS	Contact for details

Quality Control

Our Dipotassium 4-Hydroxybutyl Phosphate is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as assay, impurity profile, and water content. Specifications can be tailored to meet cGMP or other stringent regulatory requirements for pharmaceutical applications upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to minimize moisture uptake and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines
pH (5% solution)	7.0 - 9.0

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