4-Hydroxy-6-methyl-1,3,3A,7-tetraazaindene2503-56-2100 % similar Trapidil15421-84-853 % similar 2-Hydroxy-4,6-dimethylpyrimidine108-79-236 % similar 2-Hydroxy-4,6-dimethylpyrimidine hydrochloride34289-60-633 % similar 6-Methyl-4(3H)-pyrimidinone3524-87-633 % similar 4-Hydroxy-6-methyl-2(1H)-pyridinone3749-51-732 % similar 2,6-Dimethyl-4(3H)-pyrimidinone6622-92-032 % similar 4,6-Dimethylpyrimidine1558-17-431 % similar Methylthiouracil56-04-231 % similar 2,4,6-Trimethylpyridine108-75-830 % similar