ChemicalBook >> CAS DataBase List >>4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid isopropyl ester 1,1-dioxide

4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid isopropyl ester 1,1-dioxide

4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid isopropyl ester 1,1-dioxide structure

CAS No.: 118854-48-1

Chemical Name:: 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid isopropyl ester 1,1-dioxide

Synonyms: Piroxicam EP IMP L;PiroxicaM iMpurity L;MeloxicaM IMpurity F;Meloxicam Impurity F(EP);Meloxicam EP Impurity F(EP);Isopropyl 4-Hydroxy-2-methyl-;Meloxicam USP Related Compound C;1-Methylethyl 4-Hydroxy-2-methyl-2H;Meloxicam EP Impurity F (Piroxicam EP Impurity L);Piroxicam EP Impurity L (Meloxicam EP Impurity F)

CBNumber:: CB8854915

Molecular Formula:: C13H15NO5S

Molecular Weight:: 297.33

MDL Number:: MFCD09031311

MOL File:: 118854-48-1.mol

MSDS File:: SDS

Last updated:2026-05-28 03:36:19

Product description	Number	Pack Size	Price
Meloxicam Related Compound C Pharmaceutical Secondary Standard; Certified Reference Material	PHR2502	50 mg	$640
Meloxicam Related Compound C	1379434	30mg	$1460
Isopropyl 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide (Piroxicam Impurity L)	TRC-I824600-10MG	10mg	$238
Isopropyl 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide (Piroxicam Impurity L)	TRC-I824600-100MG	100mg	$1733
Isopropyl 4-Hydroxy-2-Methyl-2H-Benzo[E][1,2]Thiazine-3-Carboxylate 1,1-Dioxide 97%	AA007PFJ	50mg	$128
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4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid isopropyl ester 1,1-dioxide Properties

Melting point	200 °C
Boiling point	450.5±55.0 °C(Predicted)
Density	1.408
storage temp.	-20°C Freezer, Under inert atmosphere
solubility	Chloroform (Slightly), Methanol (Slightly)
pka	4.50±1.00(Predicted)
color	White to Off-White
Major Application	pharmaceutical
InChI	1S/C13H15NO5S/c1-8(2)19-13(16)11-12(15)9-6-4-5-7-10(9)20(17,18)14(11)3/h4-8,15H,1-3H3
InChIKey	ZHWSBDIYCSOTBY-UHFFFAOYSA-N
FDA UNII	7EFQ1F465L
UNSPSC Code	41116107
NACRES	NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS06
Signal word	Danger
Hazard statements	H301
Precautionary statements	P264-P270-P301+P310-P405-P501
Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	26
WGK Germany	WGK 3
HS Code	2934990002
Storage Class	6.1D - Non-combustible acute toxic Cat.3 toxic hazardous materials or hazardous materials causing chronic effects
Hazard Classifications	Acute Tox. 3 Oral
REACH Registrations	Active

4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid isopropyl ester 1,1-dioxide price More Price(11)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	PHR2502	Meloxicam Related Compound C Pharmaceutical Secondary Standard; Certified Reference Material	118854-48-1	50 mg	$640	2026-04-30	Buy
Sigma-Aldrich	1379434	Meloxicam Related Compound C	118854-48-1	30mg	$1460	2026-04-30	Buy
TRC	TRC-I824600-10MG	Isopropyl 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide (Piroxicam Impurity L)	118854-48-1	10mg	$238	2026-06-03	Buy
TRC	TRC-I824600-100MG	Isopropyl 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide (Piroxicam Impurity L)	118854-48-1	100mg	$1733	2026-06-03	Buy
aablocks	AA007PFJ	Isopropyl 4-Hydroxy-2-Methyl-2H-Benzo[E][1,2]Thiazine-3-Carboxylate 1,1-Dioxide 97%	118854-48-1	50mg	$128	2026-05-28	Buy

Product number	Packaging	Price	Buy
PHR2502	50 mg	$640	Buy
1379434	30mg	$1460	Buy
TRC-I824600-10MG	10mg	$238	Buy
TRC-I824600-100MG	100mg	$1733	Buy
AA007PFJ	50mg	$128	Buy

4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid isopropyl ester 1,1-dioxide Chemical Properties,Uses,Production

Uses

Piroxicam Impurity L. Also an impurity found in meloxicam (M216100). Meloxicam USP Related Compound C.

4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid isopropyl ester 1,1-dioxide Preparation Products And Raw materials

Raw materials

Preparation Products

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4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid isopropyl ester 1,1-dioxide Suppliers

Global( 106)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63645	58
CONIER CHEM AND PHARMA LIMITED		sales@conier.com	China	49906	58
SIMAGCHEM CORP	+86-5922680277 +86-13806087780	sale@simagchem.com	China	17339	58
Career Henan Chemica Co	+86-0371-86658258 +86-13203830695	laboratory@coreychem.com	China	30203	58
Dideu Industries Group Limited	+86-29-89586680 +86-15129568250	1059@dideu.com	China	29096	58
Dayang Chem (Hangzhou) Co.,Ltd.	+86-0571-88938639 17705817739	info@dycnchem.com	China	52693	58
sgtlifesciences pvt ltd	+91-8790379245	dj@sgtlifesciences.com	China	12351	58
Alfa Chemistry	+1-5166625404;	Info@alfa-chemistry.com	United States	20000	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418684 +86-18949823763	sales@tnjchem.com	China	25333	58
PT CHEM GROUP LIMITED	+86-85511178; +86-85511178	peter68@ptchemgroup.com	China	35405	58

Supplier	Advantage
Alchem Pharmtech,Inc.	58
CONIER CHEM AND PHARMA LIMITED	58
SIMAGCHEM CORP	58
Career Henan Chemica Co	58
Dideu Industries Group Limited	58
Dayang Chem (Hangzhou) Co.,Ltd.	58
sgtlifesciences pvt ltd	58
Alfa Chemistry	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
PT CHEM GROUP LIMITED	58

118854-48-1(4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid isopropyl ester 1,1-dioxide)Related Search:

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Formic acid isopropyl ester 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid isopropyl ester 1,1-dioxide 2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester 1,1-dioxide Methyl 4-hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide

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Isopropyl-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate-1,1-dioxide 4-HYDROXY-2-METHYL-1H-1,2-BENZOTHIAZINE-3-CARBOXYLICACIDISOPROPYLESTER-1,1-DIOXIDE 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid isopropylester-1,1-dioxide (intermediate of piroxicam) Isopropyl 2-methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylater 1,1-dioxide Isopropyl 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide (Piroxicam Impurity L) Isopropyl 4-Hydroxy-2-methyl- Meloxicam Related Compound C (30 mg) (Isopropyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate-1,1-dioxide) MeloxicaM IMpurity F Isopropyl 4-Hydroxy-2-methyl- (Piroxicam Impurity L) PiroxicaM iMpurity L isopropyl 4-hydroxy-2-methyl-2H-benzo[e][1,2]thiazine-3-carboxylate 1,1-dioxide Meloxicam Impurity F(EP) 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid isopropyl ester 1,1-dioxide Imp. F (EP): Isopropyl4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate1,1-Dioxide(1-Methylethyl4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide) propan-2-yl 4-hydroxy-2-methyl-1,1-dioxo-1λ⁶,2-benzothiazine-3-carboxylate Meloxicam EP Impurity F (Piroxicam EP Impurity L) Piroxicam EP Impurity L (Meloxicam EP Impurity F) 1-Methylethyl 4-Hydroxy-2-methyl-2H 2H-1,2-Benzothiazine-3-carboxylic acid, 4-hydroxy-2-methyl-, 1-methylethyl ester, 1,1-dioxide Piroxicam EP Impurity L (Meloxicam EP Impurity F/ Meloxicam Related Compund C) Meloxicam EP Impurity F/ Meloxicam Related Compund C (Piroxicam EP Impurity L) 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid is... Meloxicam EP Impurity F(EP) Meloxicam USP Related Compound C Isopropyl 4-hydroxy-2-methyl-2H-benzo[e][1,2]thiazine-3-carboxylate 1,1-dioxide (Meloxicam Impurity) Isopropyl 4-hydroxy-2-methyl-2H-1,2-benzothiazole-1, 1-Dioxide-3-Carboxylic Acid Ester Piroxicam EP IMP L Piroxicam EP Impurity L (Meloxicam EP Impurity F, Meloxicam USP Related Compound C) Piroxicam EP Impurity L 1-methylethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3- carboxylate 1,1-dioxide Meloxicam EP Impurity F Meloxicam USP Related Compound C 4-hydroxy-2-methyl-2H1,2Benzothiazone-3-carboxylic acid isopropyl ester 1,1dioxide 4 HYDROXY-2. METHYL-2H, 1,2, BENZOTHIOZINE 3 CARBOXYLIC ACID 1.1 DIOXIDE ISOPROPYL ESTER 118854-48-1 Aromatics Impurities Intermediates & Fine Chemicals Pharmaceuticals Sulfur & Selenium Compounds Organic acids (intermediate of piroxicam)