Cas Number:                   3680-71-5

 Formula:                       C6 H5 N3 O

 CA Index Name:            4H-Pyrrolo[2,3-d]pyrimidin-4-one, 3,7-dihydro-

 Other Names:                4H-Pyrrolo[2,3-d]pyrimidin-4-one, 1,7-dihydro- 7H-Pyrrolo[2,3-d]pyrimidin-4-ol ， 7-Deazahypoxanthine;