Tech Serve Solutions

Diethyl fumarate

CAS 623-91-6C2H5OCOCH=CHCOOC2H5Chemical Synthesis

Diethyl fumarate (CAS 623-91-6), molecular formula C2H5OCOCH=CHCOOC2H5, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.

Diethyl fumarate
Analytical StandardsAnalytical/ChromatographyBuilding BlocksC8 to C9Carbonyl CompoundsChemical SynthesisDID - DINEsters
01 /Properties
Molecular weight172.18
Linear formulaC2H5OCOCH=CHCOOC2H5
Assay≥98.0% (GC)
Gradepurum
Boiling point218-219 °C(lit.)
Density1.052 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.44(lit.)n20/D 1.440
Melting point1-2 °C(lit.)
02 /Safety & handling
Harmful / irritant
Harmful / irritant
Warning

Hazard statements

  • H302Harmful if swallowed
Protective equipmentEyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point92 °C / 197.6 °F
Transport (UN / ADR)UN 1993 / PGIII
Water hazard class (WGK, DE)3
Hazard codes (EU)Xn
Risk statements (R)22

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

03 /Identifiers & registry
CAS number
623-91-6
MDL number
MFCD00064455
PubChem substance
24871608
Beilstein registry
775347
04 /Quality & supply

Documentation

Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

05 /Frequently asked questions

What is Diethyl fumarate?

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Diethyl fumarate (CAS 623-91-6), molecular formula C2H5OCOCH=CHCOOC2H5, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to USP, BP and EP standards.

What grades of Diethyl fumarate does Tech Serve Solutions supply?

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Tech Serve Solutions supplies Diethyl fumarate in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.

What is the CAS number and molecular formula of Diethyl fumarate?

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Diethyl fumarate has CAS number 623-91-6 and molecular formula C2H5OCOCH=CHCOOC2H5. Full specifications appear in the table above and in the Certificate of Analysis.

What is the typical minimum order quantity and lead time for Diethyl fumarate?

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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.

Do you provide a Certificate of Analysis (CoA) with each shipment?

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Yes. Every batch of Diethyl fumarate ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.

How should Diethyl fumarate be stored?

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Store Diethyl fumarate in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.

What is Diethyl fumarate used for?

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Diethyl fumarate is used in chemical synthesis applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.

How do I request a quote for Diethyl fumarate?

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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.

Need Diethyl fumarate in a specific grade or volume?

Request a quote