Diethyl Fumarate

Name: Diethyl Fumarate
Brand: Vaqora Chemicals
SKU: VQ-032833

About Diethyl Fumarate

Diethyl Fumarate (CAS 623-91-6) is a process intermediate or related compound of Fumaric acid offered by Vaqora Chemicals. The compound has the formula C8H12O4, corresponding to a molecular weight of 172.18 g/mol. Systematically, it is named diethyl (E)-but-2-enedioate. Common synonyms include Fumaric acid, diethyl ester and 2-Butenedioic acid (E)-, diethyl ester.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Process chemists and analysts use it when developing synthetic routes to Fumaric acid, tracking process-related impurities and validating analytical methods. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Diethyl Fumarate is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development
Fine chemical synthesis

Industries

Related to Fumaric acid

View every impurity, metabolite and intermediate we list for Fumaric acid.

Fumaric acid impurities

Specifications & identifiers

Chemical identifiers
Product name	Diethyl Fumarate
Catalogue No.	VQ-032833
CAS Number	623-91-6
IUPAC name	diethyl (E)-but-2-enedioate
Molecular formula	C₈H₁₂O₄
Molecular weight	172.18 g/mol
Exact mass	172.0736
InChIKey	IEPRKVQEAMIZSS-AATRIKPKSA-N
SMILES	CCOC(=O)/C=C/C(=O)OCC
PubChem CID	638144

Physical properties
Physical form	Solid
LogP (XLogP3)	0.9
H-bond donors / acceptors	0 / 4
TPSA	52.6 Å²
Synonyms	Fumaric acid, diethyl ester, 2-Butenedioic acid (E)-, diethyl ester, Diethylester kyseliny fumarove, 2-Butenedioic acid (2E)-, diethyl ester, 2-Butenedioic acid, diethyl ester, (E)-, trans-2-Butenedioic acid diethyl ester, 1,4-diethyl (2Z)-but-2-enedioate, Anti-Psoriaticum, diethyl (2E)-but-2-enedioate, Fumaric Acid Diethyl Ester, 1,4-diethyl (2E)-but-2-enedioate, (2E)-2-Butenedioic acid diethyl ester

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H317May cause an allergic skin reaction
H335May cause respiratory irritation
H371May cause damage to organs
H373May causes damage to organs through prolonged or repeated exposure

Precautionary statements: P260, P261, P264, P270, P271, P272, P280, P301 + P317, P302 + P352, P304 + P340, P308 + P316, P319, P321, P330, P332 + P317, P333 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Diethyl Fumarate?

The CAS Registry Number of Diethyl Fumarate is 623-91-6. It is also known as Fumaric acid, diethyl ester, 2-Butenedioic acid (E)-, diethyl ester, Diethylester kyseliny fumarove.

What is the molecular formula and molecular weight of Diethyl Fumarate?

Diethyl Fumarate has the molecular formula C8H12O4 and a molecular weight of 172.18 g/mol. Its IUPAC name is diethyl (E)-but-2-enedioate.

What is Diethyl Fumarate used for?

Diethyl Fumarate is supplied as a characterised reference material related to Fumaric acid. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Diethyl Fumarate can I order?

We supply Diethyl Fumarate, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Diethyl Fumarate?

Yes. Every lot of Diethyl Fumarate is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Diethyl Fumarate be shipped internationally?

Yes. Diethyl Fumarate is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.