CAS No.: 111-30-8
Structural Formula: 
Molecular Formula: C5H8O2
Properties:
It is colorless or yellowish bright liquid with slight irritating odor; soluble in water, ether and ethanol.
It is active, can be easily polymerized and oxidized, and it is an excellent cross-linking agent for protein.
It also has excellent sterilizing properties.
Quality spec.:

Use: It is widely used for oil production, medical care, bio-chemical, leather treatment, tanning agents, protein cross-linking agent; in the preparation of heterocyclic compounds; also used for plastics, adhesives, fuels, perfumes, textile, paper making, printing; corrosion prevention of instruments and cosmetics etc.