4-Chloro-5H-pyrrolo[3,2-D] pyrimidine84905-80-631 % similar 4,6-Dichloro-5-methoxypyrimidine5018-38-231 % similar 4,6-Dichloro-5-pyrimidinecarbaldehyde5305-40-831 % similar 4,6-Dichloropyrimidine-5-carbonitrile5305-45-331 % similar 4-Chloro-7H-pyrrolo(2,3-d)pyrimidine-5-carboxylic acid186519-92-630 % similar 4-Chloro-6-nitroquinazoline19815-16-830 % similar