CAS 24683-26-9

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3 End Use APIs
16 Related Intermediates

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Also known as: 24683-26-9, Ethyl 4-hydroxy-2-methyl-2h-benzo[e][1,2]thiazine-3-carboxylate 1,1-dioxide, 2-methyl-4-hydroxy-2h-1,2-benzothiazine-3-carboxylic acid ethyl ester 1,1-dioxide, Ethyl 4-hydroxy-2-methyl-1,1-dioxo-2h-1,2-benzothiazine-3-carboxylate, 4-hydroxy-2-methyl-2h-1,2-benzothiazine-3-carboxylic acid ethylester 1,1-dioxide, Ead64z1ys1

Molecular Formula

C₁₂H₁₃NO₅S

Molecular Weight

283.30 g/mol

InChI Key

QWTNANUGXZEPFQ-UHFFFAOYSA-N

FDA UNII

EAD64Z1YS1

1 2D Structure

CAS 24683-26-9

2 Identification

2.1 Computed Descriptors

2.1.1 IUPAC Name

ethyl 4-hydroxy-2-methyl-1,1-dioxo-16,2-benzothiazine-3-carboxylate

2.1.2 InChI

InChI=1S/C12H13NO5S/c1-3-18-12(15)10-11(14)8-6-4-5-7-9(8)19(16,17)13(10)2/h4-7,14H,3H2,1-2H3

2.1.3 InChI Key

QWTNANUGXZEPFQ-UHFFFAOYSA-N

2.1.4 Canonical SMILES

CCOC(=O)C1=C(C2=CC=CC=C2S(=O)(=O)N1C)O

2.2 Other Identifiers

2.2.1 UNII

EAD64Z1YS1

2.3 Synonyms

2.3.1 Depositor-Supplied Synonyms

1. 24683-26-9

2. Ethyl 4-hydroxy-2-methyl-2h-benzo[e][1,2]thiazine-3-carboxylate 1,1-dioxide

3. 2-methyl-4-hydroxy-2h-1,2-benzothiazine-3-carboxylic Acid Ethyl Ester 1,1-dioxide

4. Ethyl 4-hydroxy-2-methyl-1,1-dioxo-2h-1,2-benzothiazine-3-carboxylate

5. 4-hydroxy-2-methyl-2h-1,2-benzothiazine-3-carboxylic Acid Ethylester 1,1-dioxide

6. Ead64z1ys1

7. Meloxicam Related Compound A

8. 2-methyl-4-hydroxy-2h-1,2-benzothiazine-3-carboxylic Acid Ethyl Ester-1,1-dioxide

9. Chembl598364

10. Ethyl 4-hydroxy-2-methyl-1,1-dioxo-1lambda6,2-benzothiazine-3-carboxylate

11. 2-methyl-4-hydroxy-2h-1,2-benzothiazine-1,1-dioxide-3-carboxylic Acid Ethyl Ester

12. 2h-1,2-benzothiazine-3-carboxylic Acid, 4-hydroxy-2-methyl-, Ethyl Ester, 1,1-dioxide

13. Ethyl 4-hydroxy-2-methyl-2h-1,2-benzothiazine-3-carboxylate 1,1-dioxide(piroxicam Impurity K)

14. 2-methyl-4-hydroxy-2h-1,2-benzothiazine-3-carboxylic Acid Ethyl Ester1,1-dioxide

15. Einecs 246-403-7

16. Unii-ead64z1ys1

17. Ethyl 4-hydroxy-2-methyl-1,1-dioxo-1?^{6},2-benzothiazine-3-carboxylate

18. Meloxicam Impurity A

19. Ec 246-403-7

20. Schembl2345581

21. Dtxsid30179415

22. Bdbm50309938

23. Mfcd00190168

24. Stl384274

25. 2-methyl-4-hydroxy-2h-1,2-benzothiazine-3-carboxylicacidethylester1,1-dioxide

26. Akos015889481

27. Zinc100014894

28. Cs-w012255

29. Ks-5263

30. (4-hydroxy-2-methyl-2h-1,2-benzothiazine-3-carboxylic Acid Ethyl)1,1-dioxide

31. 2-methyl-4-hydroxy-2h-1,2-benzothiazine-3 -carboxylic Acid Ethyl Ester 1,1-dioxide

32. 4-hydroxy-2-methyl-2h-1,2-benzothiazine-3-carboxylic Acid Ethyl Ester 1,1-dioxide

33. Ncgc00253615-01

34. Ac-19607

35. Meloxicam Impurity A [ep Impurity]

36. Piroxicam Impurity K [ep Impurity]

37. Db-041190

38. Ft-0638446

39. Ft-0642776

40. Meloxicam Related Compound A [usp-rs]

41. D87876

42. Meloxicam Related Compound A [usp Impurity]

43. W-107287

44. Q27277072

45. 3-carbethoxy-4-hydroxy-2-methyl-2h-1,2-benzothiazine 1,1-dioxide

46. Meloxicam Impurity A, European Pharmacopoeia (ep) Reference Standard

47. Ethyl 4-hydroxy-2-methyl-2h-1,2-benzothiazine-3-carboxylate-1,1-dioxide

48. Ethyl4-hydroxy-2-methyl-2h-benzo[e][1,2]thiazine-3-carboxylate1,1-dioxide

49. 2-methyl-4-hydroxy-2h-1,2-benzothiazine-1,1-dioxide-3carboxylic Acid Ethyl Ester

50. Ethyl 4-hydroxy-2-methyl-1,1-dioxo-2h-1,2-benzothiazine-3-carboxylate, 97%

51. Meloxicam Related Compound A, United States Pharmacopeia (usp) Reference Standard

52. 4-hydroxy-2-methyl-1,1-dioxo-1,2-dihydro-1lambda*6*-benzo[e][1,2]thiazine-3-carboxylic Acid Ethyl Ester

2.4 Create Date

2011-12-26

3 Chemical and Physical Properties

Molecular Formula	C₁₂H₁₃NO₅S
Molecular Weight	283.30 g/mol
XLogP3	3.2
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	3
Exact Mass	283.05144369 g/mol
Monoisotopic Mass	283.05144369 g/mol
Topological Polar Surface Area	92.3 Å²
Heavy Atom Count	19
Formal Charge	0
Complexity	505
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
Covalently Bonded Unit Count	1