A novel compound 5-o-[1-（3-ethoxymethyl-4-phenyl-5-ethoxycarbonyl-6-methyl-3,4-dihydropyrimidin-2-one）butoxy]phenyl-10,15,20-triphenyl zinc porphyrin（C_（65）H_（56）N_6O_5Zn） was synthesized and characterized by NMR,FT-IR and MS. The compound crystallizes out from chloroform and methanol mixture solution,and its crystal structure was measured by single-crystal X-ray diffraction,monoclinic system,space group P2_1/c with a = 17.2741（6）,b = 16.3797（6）,c = 41.0919（16） A,b = 93.810（3）°,V = 11601.0（7） A^3,Z = 4,S = 1.021,F（000） = 5000,R = 0.0749 and wR = 0.1771. Additionally,it has been revealed by X-ray analysis that Zn of porphyrin is coordinated with carbonyl O of dihydropyrimidinone,thus the porphyrin and pyrimidinone rings are distorted by the Zn–O coordination bond.
