👉 The 729 is a chemical with molecular formula C58H59NO3. It's known as a 7-methylthienone alkaloid. 729. 810629-01-7; 5-(4-chlorophenyl)-1,3,8,8-tetramethyl-5,8,9,10-tetrahydropyrimido[4,5-b]quinoline-2,4,6(1H,3H,7H)-trione