反式-4-氧基-2-丁烯酸乙酯

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.

Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Incompatible with oxidizing agents.

MFCD00236170

C₆H₈O₃

128.13

-9°

184-188°

68°(154°F)

1.063

1.4550

Keep Cold.

Liquid

Slightly soluble in water(2.6 g/L at 25°C).

8762336

III

25-34-43
Toxic if swallowed.Causes burns.May cause sensitization by skin contact.

8

20-23-26-36/37/39-45-60
When using do not eat or drink.Do not breathe gas/fumes/vapour/spray (appropriate wording to be specified by the manufacturer).In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).This material and its container must be disposed of as hazardous waste

否

  

H227-H301-H314-H318-H317
Combustible liquid.Toxic if swallowed.Causes severe skin burns and eye damage.Causes serious eye damage.May cause an allergic skin reaction.

P210e-P301+P310a-P303+P361+P353-P305+P351+P338-P405-P501a
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.Store locked up.Dispose of contents/container in accordance with local/regional/national/international regulations.