Learn More
Ethyl trans-4-oxo-2-butenoate, 96%
Description
Ethyl trans-4-oxo-2-butenoate is an intermediate used to synthesize pharmaceutically active molecules. It is also used in the asymmetric catalytic alkynylation of acetaldehyde, producing attractive synthons with broad applications, such as (+)-Tetrahydropyrenophorol.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Ethyl trans-4-oxo-2-butenoate is an intermediate used to synthesize pharmaceutically active molecules. It is also used in the asymmetric catalytic alkynylation of acetaldehyde, producing attractive synthons with broad applications, such as (+)-Tetrahydropyrenophorol.
Solubility
Slightly soluble in water(2.6 g/L at 25°C).
Notes
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Incompatible with oxidizing agents.

Specifications
Specifications
Melting Point | -9°C |
Density | 1.063 |
Boiling Point | 184°C to 188°C |
Flash Point | 68°C (154°F) |
Refractive Index | 1.455 |
Quantity | 25 g |
UN Number | UN2922 |
Beilstein | 8762336 |
Solubility Information | Slightly soluble in water(2.6g/L at 25°C). |
Formula Weight | 128.13 |
Show More |
Safety and Handling
Hazard Category | H227-H301-H314-H317-H335 |
Hazard Statement | GHS H Statement H301-H314-H318-H227-H317 Toxic if swallowed. Causes severe skin burns and eye damage. Causes serious eye damage. Combustible liquid. May cause an allergic skin reaction. |
Precautionary Statement | P210-P235-P260-P264b-P270-P271-P272-P280-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P333+P313-P363-P370+P378q-P501c |
DOTInformation | Transport Hazard Class: 8; Packing Group: III; Proper Shipping Name: CORROSIVE LIQUIDS, TOXIC, N.O.S. |
TSCA | No |
Recommended Storage | Keep cold |
RUO – Research Use Only
Your input is important to us. Please complete this form to provide feedback related to the content on this product.