Description

Fumaryl Chloride CAS NO 627-63-4 is a high-purity, reactive organic acid chloride characterized by its fumaryl backbone. This compound is a critical intermediate for synthesizing complex molecules, offering superior reactivity for acylation and condensation reactions. It is essential for manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors who require a reliable and consistent building block for advanced synthesis.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), including certain diuretics and anti-inflammatory agents.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators.
• Polymer & Resin Modifier: Serves as a cross-linking agent or monomer for producing specialty polymers with enhanced thermal or chemical resistance.
• Dye & Pigment Manufacturing: Acts as an intermediate in the synthesis of complex organic dyes and colorants.
• Organic Synthesis Reagent: Employed in laboratory and industrial-scale reactions for introducing the fumaryl moiety into target molecules.
• Chemical Research & Development: A valuable reagent for exploring new synthetic pathways and novel compound libraries.

Basic Information

Product Name	Fumaryl Chloride
CAS No.	627-63-4
Molecular Formula	C4H2Cl2O2
Molecular Weight	152.96 g/mol
Synonyms	Fumaryl Dichloride; (2E)-2-Butenedioyl Dichloride; trans-Butenedioyl Chloride; trans-1,2-Ethylenedicarbonyl Chloride; (E)-2-Butenedioyl Dichloride; Allomaleic Acid Chloride; 2-Butenedioyl Dichloride, (E)-
EINECS	211-000-8

Quality Control

Our Fumaryl Chloride is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC and GC analysis, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases, alcohols, and amines. Due to its nature as a strong acid/organic solvent, handle with appropriate engineering controls and personal protective equipment. Recommended storage temperature is 2-8°C for extended stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Purity (GC)	≥ 97.0%
Maleoyl Chloride (Impurity)	≤ 1.5%
Water Content (KF)	≤ 0.1%

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