Pyrimido[4,5-c]pyridazin-5(1H)-one CAS No.:34122-01-5 Molecular Formula:C6H4N4O Molecular Weight:148.122 Melting Point: Flash Point:452.2 °C at 760 mmHg. Sent E-mail INQUIRY ←[Previous:2,3-Dihydro-1-oxo-1H-indene-5-carbonitrile] [Next:3-Bromo-6-chloropyrazin-2-amine]→