

share
Diethyl Dichloromalonate CAS NO 20165-81-5
Unit Price:
CAS No.:20165-81-5
Grade:Pharmacy Grade
Content:99.9%
Brand:Customizable
Packaging:Customizable
Description
Diethyl Dichloromalonate is a versatile and highly reactive organic building block, primarily valued for its role as a key intermediate in the synthesis of complex molecules. Its significance lies in its ability to introduce the dichloromalonate moiety, a crucial precursor for heterocyclic compounds, pharmaceuticals, and advanced materials. This product is essential for research chemists and process development teams in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients and functional materials.
Application
- Pharmaceutical Intermediate: A critical precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those containing heterocyclic structures like pyrimidines and triazines.
- Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and plant growth regulators, where it serves as a key building block for bioactive molecules.
- Specialty Chemical Production: Employed in the synthesis of dyes, pigments, and complex organic ligands for catalysts and electronic materials.
- Research & Development: A valuable reagent in academic and industrial R&D labs for exploring new synthetic pathways and creating novel chemical entities.
- Polymer Chemistry: Can be utilized as a monomer or cross-linking agent in the development of specialty polymers with unique properties.
Basic Information
| Product Name | Diethyl Dichloromalonate |
| CAS No. | 20165-81-5 |
| Molecular Formula | C7H10Cl2O4 |
| Molecular Weight | 229.06 g/mol |
| Synonyms | Dichloromalonic Acid Diethyl Ester; Diethyl 2,2-Dichloromalonate; Ethyl Dichloromalonate; Malonic Acid, 2,2-Dichloro-, Diethyl Ester; Diethyl Dichloropropanedioate; Propanedioic Acid, 2,2-Dichloro-, 1,3-Diethyl Ester; 2,2-Dichloromalonic Acid Diethyl Ester |
| EINECS | 243-586-8 |
Quality Control
Our Diethyl Dichloromalonate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling. A Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment. We adhere to relevant industry standards and can support development projects requiring specific analytical protocols.
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). This material is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed and away from direct light to maintain product integrity and prevent decomposition.
Specification
| Item | Specification |
|---|---|
| Appearance | Colorless to pale yellow liquid |
| Identification (IR) | Conforms to structure |
| Assay (GC/HPLC) | ≥ 98.0% |
| Water Content (KF) | ≤ 0.5% |
| Density (at 20°C) | ~1.30 g/cm³ |
| Refractive Index (n20D) | ~1.445 |
Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.
Hot Related Products


Allyl Acrylate CAS NO 999-55-3


Ethylene Carbonate CAS NO 96-49-1


Methyl Acrylate CAS NO 96-33-3


Dl-Lactide CAS NO 95-96-5


4-Hydroxymethyl-1,3-Dioxolan-2-One CAS NO 931-40-8


Methyl Propiolate CAS NO 922-67-8


Ortho-n-Valeric Acid Triethyl Ester CAS NO 919-29-9


Methyl Methacrylate CAS NO 80-62-6


Methyl 2-(Methylamino)Benzoate CAS NO 85-91-6


Decanoic Acid, 2-[4-(Phenylmethoxy)Phenyl]Ethyl Ester CAS NO 848484-93-5


Methyl Benzilate CAS NO 76-89-1


Diurethane Dimethacrylate, Mixture Of Isomers CAS NO 72869-86-4


Isobornyl Methacrylate CAS NO 7534-94-3


Diethyl Azelate CAS NO 624-17-9


Resin Acids And Rosin Acids, Hydrogenated, Esters With Glycerol CAS NO 65997-13-9


Tricaprin CAS NO 621-71-6


Diethyl Benzylmalonate CAS NO 607-81-8


Methyl 4-Bromobenzoate CAS NO 619-42-1


Phenyl Carbamate CAS NO 622-46-8


Ethyl Crotonate CAS NO 623-70-1
why choose us
Trusted Manufacturer
With our own production facilities, we ensure consistent quality, reliable supply, and full traceability.
Rigorous Quality Assurance
Each batch undergoes strict QC, accompanied by COA, MSDS, and full compliance with international standards.
Advanced R&D Expertise
Our in-house lab drives process innovation, new product development, and tailored synthesis solutions.





