Description

4,4'-Dde CAS NO 72-55-9 is a high-purity organic chemical compound, specifically a dichlorodiphenyldichloroethane derivative. This compound is valued for its role as a key intermediate and reference standard in advanced chemical synthesis and analytical research. It is essential for industries and research institutions focused on developing and testing specialized organic molecules, agrochemicals, and pharmaceuticals.

Application

• Chemical Intermediate: Serves as a crucial building block in the synthesis of more complex organic compounds and active pharmaceutical ingredients (APIs).
• Analytical Reference Standard: Used as a certified reference material (CRM) in gas chromatography (GC) and high-performance liquid chromatography (HPLC) for method development, calibration, and quality control.
• Agrochemical Research: Employed in research and development for studying the properties and effects of related chlorinated hydrocarbon compounds.
• Environmental Testing: Acts as a standard in environmental analysis for detecting and quantifying persistent organic pollutants (POPs) and their metabolites.
• Academic & Industrial R&D: Utilized in universities and corporate laboratories for fundamental research in organic chemistry and material science.

Basic Information

Product Name	4,4'-Dde
CAS No.	72-55-9
Molecular Formula	C14H10Cl4
Molecular Weight	320.04 g/mol
Synonyms	4,4'-Dichlorodiphenyldichloroethane; p,p'-DDE; 1,1'-(2,2-Dichloroethylidene)bis[4-chlorobenzene]; 2,2-Bis(4-chlorophenyl)-1,1-dichloroethene; DDE; p,p'-Dichlorodiphenyldichloroethylene; 4,4'-DDE; NSC 8933
EINECS	200-784-6

Quality Control

Our 4,4'-Dde is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC and GC analysis, to ensure high purity and batch-to-batch consistency. We provide detailed Certificates of Analysis (COA) with each shipment, documenting identity, purity, and impurity profiles to support your quality assurance protocols.

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). Keep away from heat, open flames, and incompatible materials. This product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	88 - 92 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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