2,4-Dimethylthiazole541-58-232 % similar 2,4-Dichlorothieno[2,3-d]pyrimidine18740-39-131 % similar 5-Bromo-2,4-dimethyl-1,3-thiazole28599-52-230 % similar 4-Bromo-2-methyl-1,3-thiazole298694-30-130 % similar