4,5-Dimethyl-3-isoxazolamine13999-39-8100 % similar 4-Bromo-5-methyl-3-isoxazolamine5819-40-956 % similar 5-Bromo-3,4-dimethyl-2-pyridinamine374537-97-030 % similar 3-Amino-5-methylisoxazole1072-67-930 % similar