InChI=1/C13H14ClN3O4/c14-10-7-8(17(20)21)3-4-9(10)11(18)16-13(12(15)19)5-1-2-6-13/h3-4,7H,1-2,5-6H2,(H2,15,19)(H,16,18)/f/h16H,15H2 CB9B771C8392A882