Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

24683-26-9

24683-26-9 structure

24683-26-9 structure

Name: Ethyl 4-hydroxy-2-methyl-2H-benzo[e][1,2]thiazine-3-carboxylate 1,1-dioxide
Chemical Name: Ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide
CAS Number: 24683-26-9
Molecular Formula: C₁₂H₁₃NO₅S
Molecular Weight: 283.300
Create Date: 2018-10-21 22:05:07
Modify Date: 2026-07-01 16:05:38

Name	Ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide
Synonyms	2-METHYL-4-HYDROXY-2H-1,2-BENZOTHIAZINE-3-CBOXYLIC ETHYL ESTER-1,1-DIOXIDE 2H-1,2-BENZOTHIAZINE-3-CBOXYLIC ACID, 3,4-DIHYDRO-4-HYDROXY-2-METHYL-, ETHYL ESTER, 1,1-DIOXIDE 2-METHYL-4-HYDROXY-2H-1,2-BENZOTHIAZINE-1,1-DIOXIDE-3-CBOXYLIC ACID ETHYL ESTER Piroxicam Impurity K 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate of ethyl-1,1-dioxide (4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-cboxylic acid ethyl)1,1-dioxide 2-benzothiazine-3-cboxylic acid ethyl ester-1 2H-1,2-Benzothiazine-3-cboxylic acid, 4-hydroxy-2-methyl-, ethylester, 1,1-dioxide 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-cboxylic acid ethyl ester 1,1-d Ethyl 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-cboxylate 1,1-Dioxide (Piroxicam Impurity K) Piroxicam Impurity K(Meloxicam Impurity A) Ethyl4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate1,1-Dioxide(PiroxicamImpurityK) ETHYL 4-HYDROXY-2-METHYL-2H-1,2-BENZOTHIAZINE-3-CBOXYLATE 1,1-DIOXIDE (MELOXICAM INTERMEDIATE) 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester 1,1-d 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate-1,1-dioxide ethyl ester 2h-1,2-benzothiazine-3-carboxylicacid,4-hydroxy-2-methyl-,ethylester,1,1-d Ethyl4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-cboxylta 1,1-dioxide 2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3 -carboxylic acid ethyl ester 1,1-dioxide Meloxicam Related Compound A Meloxicam Impurity-A / Meloxicam Related Compound-A 4-HYDROXY-2-METHYL-2H-1,2-BENZOTHIAZINE-3-CBOXYLIC ACID ETHYL ESTER-1,1-DIOXIDE Ethyl 4-hydroxy-2-methyl-1,1-dioxo-2H-1,2-benzothiazine-3-carboxylate Imp. A : Ethyl4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-cboxylate 1,1-Dioxide 4-hydroxy-2-methyl-2H-l,2-benzothiazine-3-carboxylic acid ethylester Ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-cboxylate 1,1-dioxide MELOXICAM RELATED COMPOUND A/MELOXICAM IMPURITY A Ethyl 4-hydroxy-2-methyl-2H-benzo[e][1,2]thiazine-3-cboxylate 1 Meloxicam RC A/Meloxicam IMP A Meloxicam Impurity A Meloxicam Related Compound A 2-benzothiazine-3-carboxylic acid ethyl ester-1 2-Methyl-4-hydroxy-2H-1 Piroxicam Impurity K Ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-cboxylate 1,1-dioxide ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazin-3-carboxylate 1,1-dioxide 4-Hydroxy, 2-Methyl, 2h,1,2-Benzothiazine Cboxylic Acid Ethyl Ester-1,1-dioxide ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate-1,1-dioxide 2-METHYL-4-HYDROXY-2H-1,2-BENZOTHIAZE-3-CAPROXYLIC ACID-1,1-DIOXIDE ETHYL ESTER 2-METHYL-4-HYDROXY-2H-1,2-BENZOTHIAZINE-3-CARBOXYLIC ETHYL ESTER-1,1-DIOXIDE MeloxicaM IMpurity A RC A) Ethyl 4-hydroxy-2-methyl-1,1-dioxo-2H-1,2-benzothiazine-3-cboxylate Ethyl 4-Hydroxy-2-methyl-1,1-dioxo-2H-1,2-benzothiazine (4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid ethyl)1,1-dioxide Meloxicam Impurity A (Piroxicam Impurity K, Meloxicam Related Compound A) 2H-1,2-Benzothiazine-3-carboxylic acid, 4-hydroxy-2-methyl-, ethyl ester, 1,1-dioxide Ethyl 4-hydroxy-2-methyl-1,1-dioxo-2H-1,2-benzothiazine-3-ca 2h-1,2-benzothiazine-3-cboxylicacid,4-hydroxy-2-methyl-,ethylester,1,1-d Ethyl 4-Hydroxy-2-methyl-2H-1,2-ben EcMetAP1-IN-1 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-cboxylic acid ethylester-1,1-dioxide (intermediate of piroxicam) Meloxicam Related Compound A (ethyl-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-cboxylate- 1,1-diox EINECS 246-403-7 Meloxicam Related Compound A (25 mg) (ethyl-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-cboxylate- 1,1-dioxide) 2-METHYL-4-HYDROXY-2H-1,2-BENZOTHIAZINE-1,1-DIOXIDE-3-CARBOXYLIC ACID ETHYL ESTER 4-HYDROXY-2-METHYL-2H-1,2-BENZOTHIAZINE-3-CBOXYLIC ACID, 1,1-DIOXIDE, ETHYL ESTERPIROXICAM MFCD00190168

Density	1.5±0.1 g/cm3
Boiling Point	448.1±55.0 °C at 760 mmHg
Melting Point	140-144 °C(lit.)
Molecular Formula	C₁₂H₁₃NO₅S
Molecular Weight	283.300
Flash Point	224.8±31.5 °C
Exact Mass	283.051453
PSA	92.29000
LogP	2.78
Vapour Pressure	0.0±1.1 mmHg at 25°C
Index of Refraction	1.618
Storage condition	-20°C Freezer

Symbol	GHS06
Signal Word	Danger
Hazard Statements	H331
Precautionary Statements	P261-P304 + P340 + P312-P403 + P233
Hazard Codes	T: Toxic;
Risk Phrases	R23
Safety Phrases	S45
RIDADR	UN 2811 6.1/PG 2
WGK Germany	2
RTECS	DL0710425
HS Code	2934991000

Precursor 5
24683-21-4 74-88-4 113412-08-1 24683-20-3
128-44-9
DownStream 6
34552-84-6 71125-38-7 35510-91-9 34258-79-2
35511-63-8 35511-66-1

HS Code	2934991000
Summary	2934991000. sultones and sultams. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

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