134749-19-2
[(2-chloro-6,7-dimethoxyquinazolin-4-yl)amino]urea
→
~60%
134749-18-1
[(6,7-dimethoxyquinazolin-4-yl)amino]urea,hydrochloride
27631-29-4
2,4-二氯-6,7-二甲氧基喹唑啉