Synonyms:
1-benzoxazin-4-one,2,2'-(1,4-phenylene)bis-4h-3 ; 2,2-(1,4-phenylene)bis((4h-3,1-benzoxazine-4-one) ; 2,2'-(1,4-phenylene)bis-4h-3,1-benzoxazin-4-one ; uv-3638 ; 2,2'-benzene-1,4-diylbis(4h-3,1-benzoxazin-4-one) ; samsorb uv-3638 ; 2,2'-(p-phenylen)di-3,1-benzoxazin ; 2,2''-p-phenylenebis-4h-3,1-benzoxazin-4-one ; cyasorb uv-3638 ; uv absorber 3638