Fig. 3From: Anti-tumor effects of pigment epithelium-derived factor (PEDF): implication for cancer therapy. A mini-reviewStructure of phosphaplatin compounds. (a) (1,2-cyclohexanediamine)-(dihydrogen pyrophosphato)-platinum(II), abbreviated as RRD2. (b) (1,2-cyclohexanediamine)-trans-dihydroxo (dihydrogen pyrophosphato)-platinum(IV), abbreviated as RRD4 Back to article page