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ChemicalBook >> CAS DataBase List >> Ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide

Ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide

Ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide price.
  • $7 - $7000
  • Product name: Ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide
  • CAS: 24683-26-9
  • MF: C12H13NO5S
  • MW: 283.3
  • EINECS:246-403-7
  • MDL Number:MFCD00190168
  • Synonyms:(4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid ethyl)1,1-dioxide;Ethyl 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide (Piroxicam Impurity K);2-benzothiazine-3-carboxylic acid ethyl ester-1;2-Methyl-4-hydroxy-2H-1;Meloxicam Related Compound A (25 mg) (ethyl-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate- 1,1-dioxide);MeloxicaM IMpurity A(EP) (USP RC A);Ethyl 4-hydroxy-2-methyl-1,1-dioxo-2H-1,2-benzothiazine-3-carboxylate 97%;ETHYL 4-HYDROXY-2-METHYL-1,1-DIOXO-2H-1,2-BENZOTHIAZINE-3-CARBOXYLATE
Price50 Properties Safety Information Description
50 prices
Selected condition：
Brand
  • A2B
  • aablocks
  • AHH
  • AK Scientific
  • Alichem
  • American Custom Chemicals Corporation
  • Arctom
  • Biosynth
  • Chemenu
  • Crysdot
  • Medical Isotopes, Inc.
  • Sigma-Aldrich
  • TRC
  • Usbiological
Package
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  • y0001035
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  • 15 mg
  • ManufacturerA2B
  • Product numberAI45734
  • Product descriptionEthyl 4-hydroxy-2-methyl-2H-benzo[e][1,2]thiazine-3-carboxylate 1,1-dioxide 98%
  • Packaging5g
  • Price$7
  • Updated2026-05-25
  • Buy
  • ManufacturerA2B
  • Product numberAI45734
  • Product descriptionEthyl 4-hydroxy-2-methyl-2H-benzo[e][1,2]thiazine-3-carboxylate 1,1-dioxide 98%
  • Packaging100g
  • Price$140
  • Updated2026-05-25
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  • ManufacturerA2B
  • Product numberAI45734
  • Product descriptionEthyl 4-hydroxy-2-methyl-2H-benzo[e][1,2]thiazine-3-carboxylate 1,1-dioxide 98%
  • Packaging500g
  • Price$559
  • Updated2026-05-25
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  • Manufactureraablocks
  • Product numberAA00I4NE
  • Product descriptionEthyl 4-Hydroxy-2-Methyl-2H-Benzo[E][1,2]Thiazine-3-Carboxylate 1,1-Dioxide 98%
  • Packaging100g
  • Price$163
  • Updated2026-05-29
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  • Manufactureraablocks
  • Product numberAA00I4NE
  • Product descriptionEthyl 4-Hydroxy-2-Methyl-2H-Benzo[E][1,2]Thiazine-3-Carboxylate 1,1-Dioxide 98%
  • Packaging5g
  • Price$9
  • Updated2026-05-29
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  • Manufactureraablocks
  • Product numberAA00I4NE
  • Product descriptionEthyl 4-Hydroxy-2-Methyl-2H-Benzo[E][1,2]Thiazine-3-Carboxylate 1,1-Dioxide 98%
  • Packaging500g
  • Price$590
  • Updated2026-05-29
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  • ManufacturerAHH
  • Product numberMT-18007
  • Product description2-Methyl-4-hydroxy-2H-1,2-benzothiazine-1,1-dioxide-3carboxylic acid ethyl ester 97%
  • Packaging100g
  • Price$445
  • Updated2026-05-26
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ90086
  • Product description2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester-1,1-dioxide 95%
  • Packaging25g
  • Price$130
  • Updated2026-06-04
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  • ManufacturerAK Scientific
  • Product numberD382
  • Product description2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester-1,1-dioxide 98%
  • Packaging10g
  • Price$134
  • Updated2026-06-04
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  • ManufacturerAK Scientific
  • Product numberJ90086
  • Product description2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester-1,1-dioxide 95%
  • Packaging100g
  • Price$395
  • Updated2026-06-04
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  • ManufacturerAK Scientific
  • Product numberD382
  • Product description2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester-1,1-dioxide 98%
  • Packaging100g
  • Price$529
  • Updated2026-06-04
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  • ManufacturerAK Scientific
  • Product numberJ90086
  • Product description2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester-1,1-dioxide 95%
  • Packaging1g
  • Price$26
  • Updated2026-06-04
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  • ManufacturerAK Scientific
  • Product numberJ10737
  • Product descriptionMeloxicam impurity A 99%(HPLC)
  • Packaging100mg
  • Price$28
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberD382
  • Product description2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester-1,1-dioxide 98%
  • Packaging1g
  • Price$35
  • Updated2026-06-04
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  • ManufacturerAK Scientific
  • Product numberJ10737
  • Product descriptionMeloxicam impurity A
  • Packaging25mg
  • Price$60
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product numberD382
  • Product description2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester-1,1-dioxide 98%
  • Packaging25g
  • Price$174
  • Updated2026-06-04
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
A2B AI45734 Ethyl 4-hydroxy-2-methyl-2H-benzo[e][1,2]thiazine-3-carboxylate 1,1-dioxide 98% 5g $7 2026-05-25 Buy
A2B AI45734 Ethyl 4-hydroxy-2-methyl-2H-benzo[e][1,2]thiazine-3-carboxylate 1,1-dioxide 98% 100g $140 2026-05-25 Buy
A2B AI45734 Ethyl 4-hydroxy-2-methyl-2H-benzo[e][1,2]thiazine-3-carboxylate 1,1-dioxide 98% 500g $559 2026-05-25 Buy
aablocks AA00I4NE Ethyl 4-Hydroxy-2-Methyl-2H-Benzo[E][1,2]Thiazine-3-Carboxylate 1,1-Dioxide 98% 100g $163 2026-05-29 Buy
aablocks AA00I4NE Ethyl 4-Hydroxy-2-Methyl-2H-Benzo[E][1,2]Thiazine-3-Carboxylate 1,1-Dioxide 98% 5g $9 2026-05-29 Buy
aablocks AA00I4NE Ethyl 4-Hydroxy-2-Methyl-2H-Benzo[E][1,2]Thiazine-3-Carboxylate 1,1-Dioxide 98% 500g $590 2026-05-29 Buy
AHH MT-18007 2-Methyl-4-hydroxy-2H-1,2-benzothiazine-1,1-dioxide-3carboxylic acid ethyl ester 97% 100g $445 2026-05-26 Buy
AK Scientific J90086 2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester-1,1-dioxide 95% 25g $130 2026-06-04 Buy
AK Scientific D382 2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester-1,1-dioxide 98% 10g $134 2026-06-04 Buy
AK Scientific J90086 2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester-1,1-dioxide 95% 100g $395 2026-06-04 Buy
AK Scientific D382 2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester-1,1-dioxide 98% 100g $529 2026-06-04 Buy
AK Scientific J90086 2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester-1,1-dioxide 95% 1g $26 2026-06-04 Buy
AK Scientific J10737 Meloxicam impurity A 99%(HPLC) 100mg $28 2026-06-04 Buy
AK Scientific D382 2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester-1,1-dioxide 98% 1g $35 2026-06-04 Buy
AK Scientific J10737 Meloxicam impurity A 25mg $60 2021-12-16 Buy
AK Scientific D382 2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester-1,1-dioxide 98% 25g $174 2026-06-04 Buy
Next Last

Properties

Melting point :140-144 °C (lit.)
Boiling point :448.1±55.0 °C(Predicted)
Density :1.458±0.06 g/cm3(Predicted)
storage temp. :2-8°C
solubility :Dichloromethane (Slightly), DMSO (Slightly), Methanol (Slightly)
form :solid
pka :4.50±1.00(Predicted)
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
InChIKey :QWTNANUGXZEPFQ-UHFFFAOYSA-N
SMILES :CCOC(=O)C1=C(O)c2ccccc2S(=O)(=O)N1C
CAS DataBase Reference :24683-26-9(CAS DataBase Reference)

Safety Information

Symbol(GHS): Skull and Crossbones (GHS06)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H331 Toxic if inhaled Acute toxicity,inhalation Category 3 Danger P261, P271, P304+P340, P311, P321,P403+P233, P405, P501
Precautionary statements:

Description

Piroxicam impurity K. Also an impurity found in meloxicam (M216100).

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Ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide
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