Parecoxib impurity 20/Valdecoxib 3’-Sulfonamide Impurity|1373038-56-2Shanghai Forever Synthesis Co.,Ltd.

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Olanzapine impurity 4/Olanzapine Thiolactam Impurity

Atorvastatin impurity 4/Atorvastatin EP Impurity A Calcium Salt

Entecavir impurity 1/(1R,3R,4R)-Entecavir

Calcipotriol EP Impurity A

pre-Calcitriol PTAD Adduct/Calcitriol EP Impurity C

Isocyclosporine A

Clobetasol Propionate EP Impurity E

15(S)-Latanoprost

(15R)-Bimatoprost/15-epi Bimatoprost

15-Keto Travoprost

15S-Cloprostenol/15-epi Cloprostenol

Azithromycin EP Impurity H

Azithromycin EP Impurity I

Roxithromycin EP Impurity B

Erythromycin EP Impurity A

Erythromycin EP Impurity B

Clarithromycin EP Impurity A

Clarithromycin EP Impurity B

Clarithromycin EP Impurity F

Rivaroxaban impurity 3/ Dechloro-Rivaroxaban

Clindamycin Phosphate EP Impurity B/Clindamycin B 2-Phosphate

Riociguat Impurity 9/2-Desfluoro-3-fluoro-Riociguat

Riociguat Impurity 19/N-Desmethyl Riociguat

Sunitinib Amide Impurity

Caspofungin impurity 1/Caspofungin Impurity A

Lurasidone impurity 4/Lurasidone Sulfoxide

Lurasidone impurity 5/Lurasidone Sulfone

Lurasidone impurity 7/Lurasidone Piperazine N-Oxide

Rivaroxaban impurity 6/ Rivaroxaban Pseudodimer

Afatinib impurity 1/Afatinib Dimer Impurity

Paliperidone impurity 10/Paliperidone N-Oxide

Paliperidone impurity 11/Paliperidone 9-Keto Impurity

Azithromycin EP Impurity L/Azithromycin N-Oxide

Fulvestrant impurity 5/Fulvestrant EP Impurity E

Fluticasone Propionate EP Impurity B/Fluticasone Sulfenic Acid Propionate

Pemetrexed impurity 3/Pemetrexed EP Impurity D

Vinorelbine EP Impurity G

Darunavir impurity 2/Darunavir CBZ Amino Impurity

Prednisolone impurity 4/Prednisolone EP Impurity F

Prednisolone impurity 6/Prednisolone EP Impurity J

Products

Product ID:	FY-PAR20
Chemical Name:	Parecoxib impurity 20/Valdecoxib 3’-Sulfonamide Impurity
Synonyms:	3-(5-methyl-4-phenylisoxazol-3-yl)benzenesulfonamide
Cas No.:	1373038-56-2
Molecular Formula:	C₁₆H₁₄N₂O₃S
Molecular Weight:	314.36
Specification:	95%min
Molecular Structure: