Similar names: 3,4:5,6-Dibenzo-2H-1,2-oxaphosphorin-2-oxide; 9,10-Dihydro-9-oxa-10-phosphaphenanthren 10-oxide; 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide; 9,10-Dihydro-9-oxa-10-phosphorylphenanthrene 10-oxide; Chemguard DOPO; DOP 11S25; DOPO; Epoclean; HCA; HCA (heat stabilizer); Hiretar 101; KFR-DOPO; Polydis 3710; Polyphlox 3742; Sanko HCA; Struktol Polydis 3710; Ukanol DOPO; Ukanol GKF; 9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide; Chemguard DOPO; DOPO; Epoclean; HCA; Hiretar 101; KFR-DOPO; Polydis 3710; Sanko HCA; Struktol Polydis 3710; Ukanol DOPO; 6H-Dibenz[c,e][1,2]oxaphosphorin 6-Oxide;