6971-56-8

Nsc66566 (2-acetyl-3-oxobut-1-enyl)urea (2-acetyl-3-oxo-but-1-enyl)urea (2-acetyl-3-keto-but-1-enyl)urea (2-ethanoyl-3-oxo-but-1-enyl)urea 3-UREIDOMETHYLENE-2,4-PENTANEDIONE 1-(2-Acetyl-3-oxobut-1-en-1-yl)urea N-(2-acetyl-3-oxobut-1-en-1-yl)urea urea, N-(2-acetyl-3-oxo-1-butenyl)- N-(2-Acetyl-3-oxo-1-buten-1-yl)urea Urea, N-(2-acetyl-3-oxo-1-buten-1-yl)-