InChI=1S/C17H19NO3.HNO3/c1-18-7-6-17-10-3-5-13(20)16(17)21-15-12(19)4-2-9(14(15)17)8-11(10)18;2-1(3)4/h2-5,10-11,13,16,19-20H,6-8H2,1H3;(H,2,3,4)/t10-,11+,13-,16-,17-;/m0./s1