1,3,5-Triazaspiro(5.5)undeca-2,4-diene, 2,4-diamino-1-(2-ethylphenyl)-9-methyl-, hydrochloride 2,4-Diamino-1-(2-ethylphenyl)-9-methyl-1,3,5-triazspiro(5.5)undeca-2,4-diene hydrochloride 73941-03-4