Synonyms:
pentaerythritolspirobis(methylphosphonate) ; 2,2'-dimethyl-5,5'-spirobi[1,3,2-dioxaphosphorinane]2,2'-dioxide ; 3,9-dimethyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane 3,9-dioxide ; 2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane,3,9-dimethyl-, 3,9-dioxide ; 3,9-dimethyl-3,9-dioxa-2,4,8,10-tetraoxa-3,9-diphosphaspiro-5,5-undecane ; phosphonic acid,methyl-, cyclic neopentanetetrayl ester (8ci) ; pentaerythritol bis(methanephosphonate) ; 3,9-dimethyl-3,9-dioxa-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane3,9-dioxide ; 3,9-dimethyl-2,4,8,10-tetraoxa-3$l^{5},9$l^{5}-diphosphaspiro[5.5]undecane 3,9-dioxide ; phosphonicacid, methyl-, cyclic diester with pentaerythritol (7ci)
