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Product FOB Price Min.Order Supply Ability Supplier
Diethyl fumarate 623-91-6 /manufacturer/low price/high quality/in stock
Cas No: 623-91-6
USD $ 12.0-13.0 / Kilogram 1 Kilogram 1-100 Metric Ton/Month Dayang Chem (Hangzhou) Co.,Ltd. Contact Supplier
High quality Diethyl Fumarate supplier in China
Cas No: 623-91-6
No Data 1 Metric Ton 30 Metric Ton/Month Simagchem Corporation Contact Supplier
High purity 623-91-6 Diethyl fumarate
Cas No: 623-91-6
USD $ 100.0-500.0 / Gram 1 Gram 99999 Gram/Year Hangzhou Dingyan Chem Co., Ltd Contact Supplier
Diethyl fumarate
Cas No: 623-91-6
No Data 25 Kilogram 500 Metric Ton/Month Hefei TNJ chemical industry co.,ltd Contact Supplier
Diethyl fumarate
Cas No: 623-91-6
No Data No Data No Data Chemwill Asia Co., Ltd. Contact Supplier
(E)-2-butenedioic acid diethyl ester
Cas No: 623-91-6
No Data 10 Milligram Amadis Chemical Co., Ltd. Contact Supplier
TIANFU CHEM----Diethyl fumarate
Cas No: 623-91-6
No Data 1 Kilogram 10 Metric Ton/Month Henan Tianfu Chemical Co., Ltd. Contact Supplier
Manufacturer supply CAS 623-91-6 with best quality
Cas No: 623-91-6
USD $ 139.0-210.0 / Kilogram 1 Kilogram 1000 Kilogram/Day Zhuozhou Wenxi import and Export Co., Ltd Contact Supplier
CAS NO.:623-91-6
Cas No: 623-91-6
No Data No Data 10000 Metric Ton/Month Henan Wentao Chemical Product Co., Ltd. Contact Supplier
2-Butenedioic acid(2E)-, 1,4-diethyl ester 623-91-6
Cas No: 623-91-6
No Data 1 Kilogram 10000 Metric Ton/Month Shanghai Upbio Tech Co.,Ltd Contact Supplier

623-91-6 Usage

Purification Methods

Wash the fumarate with aqueous 5% Na2CO3, then with saturated CaCl2 solution, dry with CaCl2 and distil it. [Beilstein 2 IV 2207.]

Synthesis Reference(s)

The Journal of Organic Chemistry, 52, p. 323, 1987 DOI: 10.1021/jo00378a045Tetrahedron Letters, 28, p. 6649, 1987 DOI: 10.1016/S0040-4039(00)96936-3

Production Methods

Diethyl fumarate is manufactured via esterification of ethanol with fumaric acid.

Chemical Properties

colourless liquid


It is used as a pesticide or comonomer for the production of polystyrene.


Diethyl fumarate is unsaturated polyester resins are used in applications, such as reinforced glass fiber for boats, piping, bathtubs, roof panels, etc., and as protective coatings, finishes, and lacquers.


ChEBI: A dieter obtained by the formal condensation of fumaric acid with ethanol.

623-91-6 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Alfa Aesar (A16214)  Diethyl fumarate, 98%    623-91-6 100g 238.0CNY Detail
Alfa Aesar (A16214)  Diethyl fumarate, 98%    623-91-6 500g 808.0CNY Detail
Alfa Aesar (A16214)  Diethyl fumarate, 98%    623-91-6 2500g 3620.0CNY Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017


1.1 GHS Product identifier

Product name diethyl fumarate

1.2 Other means of identification

Product number -
Other names 2-Butenedioic acid(2E)-, 1,4-diethyl ester

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Food additives -> Flavoring Agents
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:623-91-6 SDS

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