009019: InChI=1.12Beta/C11H8N2O7S/c14-10(15)7-8(11(16)17)13-9(12-7)5-1-3-6(4-2-5)21(18,19)20/h1-4H,(H,12,13)(H,14,15)(H,16,17)(H,18,19,20)