季酮酸

Tetronic acid is used as a precursor of a variety of substituted and ring-fused furans and butenolides. It is an acidic building block for heterocyclic compounds for medicinal applications. It is used for selective O-alkyaltion reactions involving cesium fluoride. It is also used to prepare 3H-furo[3,4-b]quinolin-1-one by reacting with 2-amino-benzaldehyde.

Incompatible with strong oxidizing agents and strong alkalis (bases).

MFCD00010086

208-785-3

C₄H₄O₃

100.07

ca 140° dec.

Ambient temperatures.

Powder

Soluble in water, dimethyl sulfoxide, acetonitrile and alcohol.

108442

36/37/38
Irritating to eyes, respiratory system and skin.

26-37
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

否

 

H315-H319-H335
Causes skin irritation.Causes serious eye irritation.May cause respiratory irritation.

P261-P280a-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapours/spray.Wear protective gloves and eye/face protection.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.Store locked up.Dispose of contents/container in accordance with local/regional/national/international regulations.