4-chloro-7H-pyrrolo[2,3-d]pyrimidin-2-amine 7H-pyrrolo[2,3-d]pyrimidin-2-amine, 4-chloro- InChI=1/C6H5ClN4/c7-4-3-1-2-9-5(3)11-6(8)10-4/h1-2H,(H3,8,9,10,11