000249: InChI=1.12Beta/C20H18ClN2O3P/c1-16(17-12-14-18(21)15-13-17)22-23-27(24,25-19-8-4-2-5-9-19)26-20-10-6-3-7-11-20/h1H3,2-15H,(H,23,24)/b22-16+