Description

Phosphoric Acid 3-Chloro-4-Methyl-2-Oxo-2H-1-Benzopyran-7-Yl=Bis(3-Chloropropyl) Ester CAS NO 4467-21-4 is a specialized organophosphorus compound belonging to the coumarin ester family. This chemical is valued for its role as a key synthetic intermediate and functional additive in advanced material science and specialty chemical manufacturing. It is primarily sought by R&D laboratories and industrial producers in the agrochemical, pharmaceutical, and polymer industries for developing novel active ingredients and performance materials.

Application

• Agrochemical Intermediate: Serves as a critical precursor in the synthesis of novel insecticides, herbicides, and fungicides, leveraging its unique coumarin-phosphorus structure.
• Pharmaceutical Research: Used as a building block in medicinal chemistry for developing potential pharmacologically active molecules, particularly those targeting enzyme inhibition.
• Flame Retardant Synergist: Functions as a reactive or additive component in flame-retardant formulations for plastics, textiles, and coatings.
• Polymer Modification: Acts as a cross-linking agent or functional monomer to impart specific properties like UV stability or adhesion to specialty polymers.
• Liquid Crystal & OLED Materials: Employed in the research and production of advanced electronic display materials and organic light-emitting diodes (OLEDs).
• Chemical Synthesis: Utilized as a versatile intermediate for further organic transformations, including nucleophilic substitutions and coupling reactions.

Basic Information

Product Name	Phosphoric Acid 3-Chloro-4-Methyl-2-Oxo-2H-1-Benzopyran-7-Yl=Bis(3-Chloropropyl) Ester
CAS No.	4467-21-4
Molecular Formula	C₁₇H₂₀Cl₃O₆P
Molecular Weight	457.67 g/mol
Synonyms	3-Chloro-4-methyl-2-oxo-2H-chromen-7-yl bis(3-chloropropyl) phosphate; 7-Hydroxy-3-chloro-4-methylcoumarin bis(3-chloropropyl) phosphate; Phosphoric acid, bis(3-chloropropyl) 3-chloro-4-methyl-2-oxo-2H-1-benzopyran-7-yl ester; Coumarin phosphate ester derivative; 4467-21-4; NSC 403014; AI3-52702
EINECS	Contact for details

Quality Control

Every batch of Phosphoric Acid 3-Chloro-4-Methyl-2-Oxo-2H-1-Benzopyran-7-Yl=Bis(3-Chloropropyl) Ester is manufactured under strict quality management systems. Our products undergo rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency meet the high standards required for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment and is available 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/59-77°F). Keep away from strong bases and incompatible materials. The container must be kept tightly sealed to exclude moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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