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3-Oxo-1,2-benzoisothiazoline-2-acetic acid methyl ester 1,1-dioxide(piroxicam impurity D) 3-Oxo-1,2-benzoisothiazoline-2-acetic acid methyl ester 1,1-dioxide(piroxicam impurity D). Group: Biochemicals. Alternative Names: Saccharin N-(2-acetic acid methyl ester); NSC 49216; Piroxicam impurity D. Grades: Highly Purified. CAS No. 6639-62-9. Pack Sizes: 500mg, 1g, 2g, 5g, 10g. Molecular Formula: C10H9NO5S. US Biological Life Sciences. USBiological 8
Worldwide
Desmethyl piroxicam (piroxicam impurity B) Desmethyl piroxicam (piroxicam impurity B). Group: Biochemicals. Alternative Names: 4-Hydroxy-N-2-pyridinyl-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide; Piroxicam impurity B. Grades: Highly Purified. CAS No. 65897-46-3. Pack Sizes: 1mg, 2mg, 5mg, 10mg. Molecular Formula: C14H11N3O4S. US Biological Life Sciences. USBiological 7
Worldwide
Despyridyl piroxicam (piroxicam impurity C) Despyridyl piroxicam (piroxicam impurity C). Group: Biochemicals. Alternative Names: 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide; Piroxicam impurity C. Grades: Highly Purified. CAS No. 24683-25-8. Pack Sizes: 1mg, 2mg, 5mg, 10mg. Molecular Formula: C10H10N2O4S. US Biological Life Sciences. USBiological 7
Worldwide
Ethyl 4-hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide(piroxicam impurity H) Ethyl 4-hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide(piroxicam impurity H). Group: Biochemicals. Alternative Names: 4-Hydroxy-2H-1,2-benzothiazine-3-carboxylic acid. Grades: Highly Purified. CAS No. 24683-21-4. Pack Sizes: 2mg, 5mg, 10mg, 25mg, 50mg. Molecular Formula: C11H11NO5S. US Biological Life Sciences. USBiological 7
Worldwide
Methyl 4-hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide(piroxicam impurity G) Methyl 4-hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide(piroxicam impurity G). Group: Biochemicals. Alternative Names: 4-Hydroxy-2H-1,2-benzothiazine-3-carboxylic acid methyl ester 1,1-dioxide; Piroxicam impurity G. Grades: Highly Purified. CAS No. 35511-14-9. Pack Sizes: 500mg, 1g, 2g, 5g, 10g. Molecular Formula: C10H9NO5S. US Biological Life Sciences. USBiological 7
Worldwide
Saccharin N-(2-acetic acid ethyl ester)(piroxicam impurity E) Saccharin N-(2-acetic acid ethyl ester)(piroxicam impurity E). Group: Biochemicals. Alternative Names: 3-Oxo-1,2-benzisothiazole-2(3H)-acetic Acid Ethyl Ester 1,1-Dioxide. Grades: Highly Purified. CAS No. 24683-20-3. Pack Sizes: 5mg, 10mg, 25mg, 50mg, 100mg. Molecular Formula: C11H11NO5S. US Biological Life Sciences. USBiological 8
Worldwide
Saccharin N-(2-acetic acid isopropyl ester)(piroxicam impurity F) Saccharin N-(2-acetic acid isopropyl ester)(piroxicam impurity F). Group: Biochemicals. Alternative Names: 3-Oxo-1,2-benzisothiazole-2(3H)-acetic Acid 1-Methylethyl Ester 1,1-Dioxide. Grades: Highly Purified. CAS No. 76508-37-7. Pack Sizes: 5mg, 10mg, 25mg, 50mg, 100mg. Molecular Formula: C12H13NO5S. US Biological Life Sciences. USBiological 8
Worldwide
2-Methyl-4-(1-methylethoxy)-N-2-pyridinyl-2H-1,2-benzothiazine-3-carboxamide 1,1-Dioxide 2-Methyl-4-(1-methylethoxy)-N-2-pyridinyl-2H-1,2-benzothiazine-3-carboxamide 1,1-Dioxide is an impurity of Piroxicam (P510000), a non-steroidal anti-inflammatory with long half-life. Group: Biochemicals. Grades: Highly Purified. CAS No. 118854-49-2. Pack Sizes: 10mg, 25mg. Molecular Formula: C18H19N3O4S, Molecular Weight: 373.43. US Biological Life Sciences. USBiological 10
Worldwide
3-Oxo-1,2-benzoisothiazoline-2-acetic Acid Methyl Ester 1,1-Dioxide 3-Oxo-1,2-benzoisothiazoline-2-acetic Acid Methyl Ester 1,1-Dioxide. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Piroxicam Imp. D (EP),Methyl (1,1-Dioxido-3-oxo-1,2-benzisothiazol-2(3H)-yl)acetate. CAS No. 6639-62-9. Pack Sizes: 10MG. IUPAC Name: methyl 2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetate. Molecular formula: C10H9NO5S. Mole weight: 255.25. Catalog: APS6639629. SMILES: COC(=O)CN1C(=O)c2ccccc2S1(=O)=O. Format: Neat. Shipping: Room Temperature. Alfa Chemistry Analytical Products 4
4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid, ethyl ester 1,1-Dioxide Piroxicam Impurity. Group: Biochemicals. Alternative Names: Ethyl 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide; Meloxicam Impurity A; Piroxicam Impurity K. Grades: Highly Purified. CAS No. 24683-26-9. Pack Sizes: 5g, 10g, 25g, 50g, 100g. US Biological Life Sciences. USBiological 8
Worldwide
Methyl 4-hydroxy-2-methyl-(2H)-1,2-benzothiazine-3-carboxylate-1,1-dioxide Methyl 4-hydroxy-2-methyl-(2H)-1,2-benzothiazine-3-carboxylate-1,1-dioxide. Group: Biochemicals. Alternative Names: 4-Piroxicam Impurity J; Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid methyl ester 1,1-dioxide. Grades: Highly Purified. CAS No. 35511-15-0. Pack Sizes: 1g, 2g, 5g, 10g, 25g. Molecular Formula: C11H11NO5S. US Biological Life Sciences. USBiological 7
Worldwide
Methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide Methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide. Group: Biochemicals. Alternative Names: 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid methyl ester 1,1-dioxide; Piroxicam impurity J. Grades: Highly Purified. CAS No. 35511-15-0. Pack Sizes: 250mg, 500mg, 1g, 2g, 5g. Molecular Formula: C11H11NO5S. US Biological Life Sciences. USBiological 7
Worldwide
Methyl-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide Methyl 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide (Piroxicam EP Impurity J) is an impurity found in Meloxicam (M2872). Group: Biochemicals. Grades: Highly Purified. CAS No. 35511-15-0. Pack Sizes: 500mg, 1g, 2g, 5g. US Biological Life Sciences. USBiological 1
Worldwide

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