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API Process Intermediates & Related Compounds

Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate

Reference StandardIn stock

Buy Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate (CAS 3788-94-1) from Zemixal. Request a quote with price, lead time and documents.

Pack sizes
Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate chemical structure
CAS number3788-94-1
FormulaC9H14O4
Molar mass186.2 g/mol
Physical formSolid
InChIKeyFNASCUBBFNCFQO-UHFFFAOYSA-N
IUPAC nameethyl 2-(ethoxymethylidene)-3-oxobutanoate

About Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate

Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate is part of the Zemixal API Process Intermediates & Related Compounds range. Identity at a glance (Reference Standard): CAS 3788-94-1, formula C9H14O4 and molar mass 186.2 g/mol. It is handled as a solid.

Use cases we see most often

  • API route development
  • Impurity fate & purge studies
  • Analytical method development

Safe handling

Classified under GHS with signal word Warning and hazard statements H302, H315, H319 and H335. Read the SDS before first use.

Standard pack sizes are 10 mg, 25 mg, 50 mg, 100 mg and 250 mg, and custom quantities are quoted on request. Every shipment includes a batch certificate of analysis and a 16-section SDS. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Teriflunomide

See every impurity, metabolite and related compound we list for this API.

Teriflunomide standards

Typical uses

  • API route development
  • Impurity fate & purge studies
  • Analytical method development

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate
Product nameEthyl (E)-2-(ethoxymethylene)-3-oxobutanoate
Catalogue numberZX-012467
CAS number3788-94-1
IUPAC nameethyl 2-(ethoxymethylidene)-3-oxobutanoate
Molecular formulaC9H14O4
Molar mass186.2 g/mol
Exact mass186.0892
GradeReference Standard
Physical formSolid
XLogP31
H-bond donors / acceptors0 / 4
Topological polar surface area52.6 Ų
InChIKeyFNASCUBBFNCFQO-UHFFFAOYSA-N
SMILESCCOC=C(C(=O)C)C(=O)OCC
PubChem CID97734
Synonyms(Z)-ethyl 2-(ethoxymethylene)-3-oxobutanoate, (E)-Ethyl 2-(ethoxymethylene)-3-oxobutanoate, Ethyl 2-(ethoxymethylene)acetoacetate, 2-[1-Ethoxymethylidene]-3-oxo-butyric acid ethyl ester, Butanoic acid, 2-(ethoxymethylene)-3-oxo-, ethyl ester, ethyl 2-(ethoxymethylene)-3-oxobutanoate, ethyl 2-(ethoxymethylene)-3-oxo-butanoate, Ethyl 2-Acetyl-3-ethoxyacrylate, 2-Acetyl-3-ethoxyacrylic Acid Ethyl Ester, ethyl (2Z)-2-(ethoxymethylidene)-3-oxobutanoate, Butanoic acid, 2-(ethoxymethylene)-3-oxo-, ethyl ester, (2Z)-, ethyl 2-ethoxymethyleneacetoacetate

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H302Harmful if swallowed
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 mgQuoted on request
500 mgQuoted on request
1 gQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate

Which CAS number identifies Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate?
Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate is registered under CAS 3788-94-1. You may also see it listed as (Z)-ethyl 2-(ethoxymethylene)-3-oxobutanoate, (E)-Ethyl 2-(ethoxymethylene)-3-oxobutanoate, Ethyl 2-(ethoxymethylene)acetoacetate. Our catalogue number for this item is ZX-012467.
What are the formula and molar mass of Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate?
For Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate, its formula is C9H14O4 and its molar mass is 186.2 g/mol. The systematic (IUPAC) name is ethyl 2-(ethoxymethylidene)-3-oxobutanoate. InChIKey FNASCUBBFNCFQO-UHFFFAOYSA-N lets you match it in any structure database.
How is Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate used in pharmaceutical QC?
Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate is a characterised reference material linked to Teriflunomide. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate to my country?
Yes. Because Ethyl (E)-2-(ethoxymethylene)-3-oxobutanoate is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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