Description

Potassium Ethyl Fumarate is a potassium salt derivative of an ethyl ester of fumaric acid, identified by CAS NO 68375-84-8. This compound serves as a versatile intermediate and functional additive, valued for its ionic character and reactivity. It is particularly relevant for manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to modify solubility or introduce specific counterions in their synthesis processes.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) where the potassium ion or fumarate moiety is required.
• Agrochemical Synthesis: Acts as a building block or salt form in the production of certain herbicides, fungicides, or plant growth regulators.
• Polymer Modification: Employed as an ionic comonomer or additive to impart specific properties like hydrophilicity or ionic conductivity to specialty polymers and resins.
• Crosslinking Agent: Functions in formulations for coatings, adhesives, or sealants that cure via reactions involving the fumarate double bond.
• Biochemical Research: Utilized as a substrate or standard in enzymatic studies and metabolic pathway research.
• Food Additive Precursor: May serve as a starting material for the synthesis of certain approved food additives, following strict purification protocols.

Basic Information

Product Name	Potassium Ethyl Fumarate
CAS No.	68375-84-8
Molecular Formula	C6H7KO4
Molecular Weight	182.22 g/mol
Synonyms	Ethyl Fumarate Potassium Salt; Potassium Ethyl Fumarate; Fumaric Acid Monoethyl Ester Potassium Salt; Monoethyl Fumarate Potassium Salt; Ethyl Hydrogen Fumarate Potassium Salt; Potassium Monoethyl Fumarate; 2-Butenedioic Acid (E)-, Monoethyl Ester, Potassium Salt; Potassium Salt of Ethyl Fumaric Acid
EINECS	Contact for details

Quality Control

Our Potassium Ethyl Fumarate is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with key parameters including assay, impurity profile, and loss on drying. Specifications can be aligned with customer requirements for pharmaceutical, agrochemical, or technical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product quality and flow properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals	< 20 ppm
Residue on Ignition (as Sulfate)	20.0% - 22.5%
Related Substances (HPLC)	Total impurities < 2.0%

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