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Ethyl Acetoacetate

EAA, ethyl 3-oxobutanoate, acetoacetic ester · CAS 141-97-9

Intermediates Pharmaceutical intermediate CoA per batchSDSGC chromatogramKeto-enol ratio data

Ethyl acetoacetate exists as a keto–enol mixture, and the ratio shifts with temperature and trace base. For customers running Claisen condensations, a drifting enol content changes reaction time in ways that are hard to diagnose downstream.

We report the keto–enol ratio and the acidity on every CoA, and ship in steel drums rather than HDPE for routes where plasticiser leaching into a keto ester is a concern.

Identity

Catalogue no.BP-INT-008
CAS number141-97-9
Molecular formulaC6H10O3
Molecular weight130.14 g/mol
HS code2918.30
SynonymsEAA, ethyl 3-oxobutanoate, acetoacetic ester
Product linePharmaceutical Intermediates
CategoryEsters & Ketones

Release specification

Catalogue standard below. For a supply agreement we release against your dossier specification; send it with the enquiry and the CoA will be built around it.

ParameterSpecification
Purity≥ 99.0% (GC)
Related substancesAcetic acid ≤ 0.10%; ethanol ≤ 0.20%
Water contentWater ≤ 0.20% (Karl Fischer)
Relative density1.020–1.030 (20 °C)
Refractive index1.418–1.421
Keto-enol ratioReported per batch

Application

Intermediate for pyrazolones, quinolines and vitamin B1; also a chiral building block.

Packaging, storage & logistics

Standard packaging200 kg steel drum; 1000 kg IBC
Minimum order1 000 kg
Lead time10–20 days
Storage conditionsStore below 25 °C in closed containers, away from bases and oxidisers
Shipping documentsInvoice, packing list, CoA, SDS, certificate of origin; DGM/IATA declaration where applicable

Pack sizes available — pick one to prefill the enquiry

Documentation provided

  • CoA per batchBatch-specific, tested against the specification agreed at PO stage
  • SDSCurrent GHS revision; destination-language version on request
  • GC chromatogramIssued with each lot on request.
  • Keto-enol ratio dataIssued with each lot on request.

Need the DMF open part, a sample CoA or an audit pack before you can qualify us? Ask on the enquiry form — we send those documents before any commercial discussion.

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