1,4-Benzenediol,2-(6-oxido-6H-dibenz[c,e][1,2]oxaphosphorin-6-yl)- , its cas register number is 99208-50-1. It also can be called 2-(6-Oxido-6H-dibenzo[c,e][1,2]oxaphosphinin-6-yl)benzene-1,4-diol .