| 1 | 34258-79-2 | W7477 | W7477 | C16H14N2O4S
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| 2 | 181695-81-8 | 1-Hydroxy Valdecoxib | 1-Hydroxy Valdecoxib | C16H14N2O4S
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| 3 | 501093-49-8 | 杂质帕瑞昔布H | Parecoxib Sodium Impurity H | C16H14N2O4S
| 杂质对照品;对照品-杂质对照品 | 杂质对照品;对照品-杂质对照品 |
| 4 | 6357-92-2 | 6-(2,4-diaminophenoxy)-2-naphthalenesulfonic acid | 6-(2,4-diaminophenoxy)-2-naphthalenesulfonic acid | C16H14N2O4S
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| 5 | 477846-81-4 | 2-PHENOXYETHYL 5-PHENYL-1,3,4-OXADIAZOL-2-YL SULFONE | 2-PHENOXYETHYL 5-PHENYL-1,3,4-OXADIAZOL-2-YL SULFONE | C16H14N2O4S
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| 6 | 952182-23-9 | 1-甲基苯磺酰基-1H-吡咯并[2,3-B]吡啶-3-羧酸甲酯 | METHYL 1-TOSYL-1H-PYRROLO[2,3-B]PYRIDINE-3-CARBOXYLATE | C16H14N2O4S
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| 7 | | 8-Amino-5-(p-hydroxyanilino)-2-naphthalenesulfonic acid | 8-Amino-5-(p-hydroxyanilino)-2-naphthalenesulfonic acid | C16H14N2O4S
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| 8 | | 1-BENZYL-6-(METHYLSULPHONYL)-2,3(1H,4H)-QUINOXALINEDIONE | 1-BENZYL-6-(METHYLSULPHONYL)-2,3(1H,4H)-QUINOXALINEDIONE | C16H14N2O4S
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| 9 | 869651-65-0 | (1,1-二氧化苯并[D]异噻唑-3-基)-L-苯丙氨酸 | L-Phenylalanine, N-(1,1-dioxido-1,2-benzisothiazol-3-yl)- | C16H14N2O4S
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| 10 | 157921-79-4 | 2-[[[(PHENOXYACETYL)AMINO]THIOXOMETHYL]AMINO]-BENZOIC ACID | 2-[[[(PHENOXYACETYL)AMINO]THIOXOMETHYL]AMINO]-BENZOIC ACID | C16H14N2O4S
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| 11 | | 4-BENZOYL-7-(METHYLSULFONYL)-3,4-DIHYDROQUINOXALIN-2(1H)-ONE | 4-BENZOYL-7-(METHYLSULFONYL)-3,4-DIHYDROQUINOXALIN-2(1H)-ONE | C16H14N2O4S
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| 12 | 6357-75-1 | 8-Amino-5-[(4-hydroxyphenyl)amino]-2-naphthalenesulfonic Acid | 8-Amino-5-[(4-hydroxyphenyl)amino]-2-naphthalenesulfonic Acid | C16H14N2O4S
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| 13 | 672925-67-6 | 5-(3-METHOXYPHENYL)-3-[(PHENYLSULFONYL)METHYL]-1,2,4-OXADIAZOLE | 5-(3-METHOXYPHENYL)-3-[(PHENYLSULFONYL)METHYL]-1,2,4-OXADIAZOLE | C16H14N2O4S
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| 14 | 6950-33-0 | | 5(2H)-Isoxazolone,3-amino-2-[(4-methylphenyl)sulfonyl]-4-phenyl- | C16H14N2O4S
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| 15 | | 3-(3,4-DIMETHOXY-PHENYL)-6-HYDROXY-2-MERCAPTO-3H-QUINAZOLIN-4-ONE | 3-(3,4-DIMETHOXY-PHENYL)-6-HYDROXY-2-MERCAPTO-3H-QUINAZOLIN-4-ONE | C16H14N2O4S
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| 16 | | ETHYL 2,4-DIOXO-3-(2-PHENYLHYDRAZONO)-4-(2-THIENYL)BUTANOATE, TECH | ETHYL 2,4-DIOXO-3-(2-PHENYLHYDRAZONO)-4-(2-THIENYL)BUTANOATE, TECH | C16H14N2O4S
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| 17 | 25840-58-8 | 2-(1,3-二氧代异吲哚-2-基)-N-苯基-乙基磺酰胺 | 2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-N-phenylethanesulfonamide | C16H14N2O4S
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| 18 | | 3-(1,1-dioxido-3-oxo-1,2-benzisothiazol-2(3H)-yl)-N-phenylpropanamide | 3-(1,1-dioxido-3-oxo-1,2-benzisothiazol-2(3H)-yl)-N-phenylpropanamide | C16H14N2O4S
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| 19 | | METHYL 2-[4-(METHYLSULFONYL)PHENYL]IMIDAZO[1,2-A]PYRIDINE-6-CARBOXYLATE | METHYL 2-[4-(METHYLSULFONYL)PHENYL]IMIDAZO[1,2-A]PYRIDINE-6-CARBOXYLATE | C16H14N2O4S
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| 20 | 100258-48-8 | 5(or8)-amino-8(or5)-[(4-hydroxyphenyl)amino]naphthalene-2-sulphonic acid | 5(or8)-amino-8(or5)-[(4-hydroxyphenyl)amino]naphthalene-2-sulphonic acid | C16H14N2O4S
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| 21 | 92082-85-4 | 4-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-N,N-dimethylbenzenesulfonamide | 4-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-N,N-dimethylbenzenesulfonamide | C16H14N2O4S
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| 22 | 462612-60-8 | methyl 4-cyano-5-[(2-methoxybenzoyl)amino]-3-methyl-2-thiophenecarboxylate | methyl 4-cyano-5-[(2-methoxybenzoyl)amino]-3-methyl-2-thiophenecarboxylate | C16H14N2O4S
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| 23 | 82424-53-1 | (Z,E)-2-(4-甲氧基苯基)([((4-甲基苯基)磺酰基)氧基]亚氨基)乙腈 | (Z,E)-2-(4-METHOXYPHENYL)([((4-METHYLPHENYL)SULPHONYL)OXY]IMINO)ACETONITRILE | C16H14N2O4S
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| 24 | 245064-82-8 | 1-(苯磺酰基)-吡咯并[2,3-B]吡啶-3-羧酸乙酯 | 1H-Pyrrolo[2,3-b]pyridine-3-carboxylic acid, 1-(phenylsulfonyl)-, ethyl ester | C16H14N2O4S
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| 25 | | 2-(1,1-DIOXO-1H-1LAMBDA6-BENZO[D]ISOTHIAZOL-3-YLAMINO)-3-PHENYL-PROPIONIC ACID | 2-(1,1-DIOXO-1H-1LAMBDA6-BENZO[D]ISOTHIAZOL-3-YLAMINO)-3-PHENYL-PROPIONIC ACID | C16H14N2O4S
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| 26 | 946387-40-2 | 2,2-DIMETHYL-5-(((4-PHENYL(2,5-THIAZOLYL))AMINO)METHYLENE)-1,3-DIOXANE-4,6-DIONE | 2,2-DIMETHYL-5-(((4-PHENYL(2,5-THIAZOLYL))AMINO)METHYLENE)-1,3-DIOXANE-4,6-DIONE | C16H14N2O4S
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| 27 | | 5-Acetyl-2,3-dihydro-4-hydroxy-3-phenyl-2-[cyano(ethoxycarbonyl)methylene]thiazole | 5-Acetyl-2,3-dihydro-4-hydroxy-3-phenyl-2-[cyano(ethoxycarbonyl)methylene]thiazole | C16H14N2O4S
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| 28 | 1002957-79-0 | 2-Propenoic acid, 2-(2-benzoxazolylthio)-3-[5-(dimethylamino)-2-furanyl]-, (2E)- | 2-Propenoic acid, 2-(2-benzoxazolylthio)-3-[5-(dimethylamino)-2-furanyl]-, (2E)- | C16H14N2O4S
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| 29 | | ETHYL 2-[2-(1,3-DIOXO-1,3-DIHYDRO-2H-ISOINDOL-2-YL)ETHYL]-1,3-THIAZOLE-4-CARBOXYLATE | ETHYL 2-[2-(1,3-DIOXO-1,3-DIHYDRO-2H-ISOINDOL-2-YL)ETHYL]-1,3-THIAZOLE-4-CARBOXYLATE | C16H14N2O4S
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| 30 | 36881-68-2 | 4-HYDROXY-1-METHYL-2,2-DIOXO-N-PHENYL-1,2-DIHYDRO-2LAMBDA6,1-BENZOTHIAZINE-3-CARBOXAMIDE | 4-HYDROXY-1-METHYL-2,2-DIOXO-N-PHENYL-1,2-DIHYDRO-2LAMBDA6,1-BENZOTHIAZINE-3-CARBOXAMIDE | C16H14N2O4S
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| 31 | 593266-04-7 | 3-Thiazolidineaceticacid,5-(1H-indol-3-ylmethylene)-alpha-methyl-2,4-dioxo-,methylester(9CI) | 3-Thiazolidineaceticacid,5-(1H-indol-3-ylmethylene)-alpha-methyl-2,4-dioxo-,methylester(9CI) | C16H14N2O4S
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| 32 | 108361-85-9 | 3,5-dimethyl-9,9-dioxo-8-phenacyl-9$l^{6}-thia-2,8-diazabicyclo[4.3.0] nona-2,4,10-trien-7-one | 3,5-dimethyl-9,9-dioxo-8-phenacyl-9$l^{6}-thia-2,8-diazabicyclo[4.3.0] nona-2,4,10-trien-7-one | C16H14N2O4S
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