Synonyms: Thymidine,5'-(trihydrogen methylenediphosphonate), monoanhydride with phosphoric acid(8CI); Thymidine, 5'-O-(1,3,5,5-tetrahydroxy-4-oxa-1,3,5-triphosphapent-1-yl)-,P,P',P''-trioxide; Phosphonic acid, methylenedi-, 5'-ester with thymidine,monoanhydride with phosphoric acid (8CI); 3: PN: WO2007070572 PAGE: 69 claimedDNA; a,b-Methylenethymidine triphosphate