4-(4-(methylsulfonyl)phenyl)-3-phenylfuran-2(5H)-one-D5; 4-[4-(Methylsulfonyl)phenyl]-3-(phenyl-d5)-2(5H)-furanone; 3-(4-Methanesulfonylphenyl)-2-(phenyl-d5)-2-buten-4-olide; 3-(Phenyl-d5)-4-[4-(Methylsulfonyl)phenyl]-2(5H)-furanone; MK 0966-d5; MK 966-d5; Rhuma-cure-d5; Rofecoxib-d5;
