- Assay / purity
- ≥ 99.0%
- MOQ
- 100 kg
- Lead time
- 15–30 days
Ethyl Acetoacetate
EAA, ethyl 3-oxobutanoate, acetoacetic ester · CAS 141-97-9
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 number | 141-97-9 |
| Molecular formula | C6H10O3 |
| Molecular weight | 130.14 g/mol |
| HS code | 2918.30 |
| Synonyms | EAA, ethyl 3-oxobutanoate, acetoacetic ester |
| Product line | Pharmaceutical Intermediates |
| Category | Esters & 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.
| Parameter | Specification |
|---|---|
| Purity | ≥ 99.0% (GC) |
| Related substances | Acetic acid ≤ 0.10%; ethanol ≤ 0.20% |
| Water content | Water ≤ 0.20% (Karl Fischer) |
| Relative density | 1.020–1.030 (20 °C) |
| Refractive index | 1.418–1.421 |
| Keto-enol ratio | Reported per batch |
Application
Intermediate for pyrazolones, quinolines and vitamin B1; also a chiral building block.
Packaging, storage & logistics
| Standard packaging | 200 kg steel drum; 1000 kg IBC |
| Minimum order | 1 000 kg |
| Lead time | 10–20 days |
| Storage conditions | Store below 25 °C in closed containers, away from bases and oxidisers |
| Shipping documents | Invoice, packing list, CoA, SDS, certificate of origin; DGM/IATA declaration where applicable |
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.
Request a quotation
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