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Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate

Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate structure

CAS No.: 188614-01-9

Chemical Name:: Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate

Synonyms: Methyl-3-Oxo-3,4-Dihydro-2H-1,;Methyl 3-Oxo-2H-1,4-benzothiazine-6-carboxylate;methyl 3-oxo-4H-1,4-benzothiazine-6-carboxylate;3-oxo-4H-1,4-benzothiazine-6-carboxylic acid methyl ester;3-keto-4H-1,4-benzothiazine-6-carboxylic acid methyl ester;Methyl 3,4-dihydro-3-oxo-2H-1,4-benzothiazine-6-carboxylate;Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate;2-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate;Methyl3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate,97%;methyl 3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazine-6-carboxylate

CBNumber:: CB6948304

Molecular Formula:: C10H9NO3S

Molecular Weight:: 223.25

MDL Number:: MFCD00449104

MOL File:: 188614-01-9.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-05-28 01:24:28

Product description	Number	Pack Size	Price
Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Asreported	284710	1g	$366
Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Asreported	284710	2g	$508
Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Asreported	284710	5g	$975
Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Asreported	284710	10g	$1397
Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Asreported	284710	25g	$2031
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Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Properties

Melting point	180-182°
Boiling point	435.7±45.0 °C(Predicted)
Density	1.343±0.06 g/cm3(Predicted)
storage temp.	Sealed in dry,Room Temperature
form	Solid
pka	12.34±0.20(Predicted)
Appearance	White to off-white Solid
CAS DataBase Reference	188614-01-9(CAS DataBase Reference)
UNSPSC Code	12352200

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H315-H319-H335

Precautionary statements

P261-P280a-P304+P340-P305+P351+P338-P405-P501a

Hazard Codes

HazardClass

IRRITANT

HS Code

2934999090

NFPA 704

	1
2		0

Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate price More Price(67)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Usbiological	284710	Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Asreported	188614-01-9	1g	$366	2026-06-03	Buy
Usbiological	284710	Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Asreported	188614-01-9	2g	$508	2026-06-03	Buy
Usbiological	284710	Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Asreported	188614-01-9	5g	$975	2026-06-03	Buy
Usbiological	284710	Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Asreported	188614-01-9	10g	$1397	2026-06-03	Buy
Usbiological	284710	Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Asreported	188614-01-9	25g	$2031	2026-06-03	Buy

Product number	Packaging	Price	Buy
284710	1g	$366	Buy
284710	2g	$508	Buy
284710	5g	$975	Buy
284710	10g	$1397	Buy
284710	25g	$2031	Buy

Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Chemical Properties,Uses,Production

Synthesis

2365-48-2

412947-54-7

Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate

188614-01-9

GENERAL METHOD: A suspension of methyl 3-iodo-4-aminobenzoate (1 mmol), methyl thioglycolate (1.5 eq.), cuprous(I) iodide (0.05 mmol), trans-N,N'-dimethylcyclohexane-1,2-diamine (0.1 mmol), and cesium carbonate (2 eq.) in anhydrous 1,4-dioxane (4 mL) was added to a vial. Nitrogen was passed into the suspension to degas it for 3 min under stirring. Subsequently, the vial was sealed. The reaction mixture was heated at 100 °C (oil bath temperature) for 15 hours. After completion of the reaction, it was cooled to room temperature and filtered. The filtrates were combined and concentrated using a rotary evaporator and the resulting residue was purified by silica gel column chromatography (eluent: 5% dichloromethane solution in methanol) to afford the target product, methyl 3-carbonyl-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate, as a beige solid.

References

[1] Tetrahedron Letters, 2013, vol. 54, # 38, p. 5214 - 5216

Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Preparation Products And Raw materials

Raw materials

Methyl thioglycolate METHYL 3-AMINO-4-IODOBENZOATE Copper(l) iodide (1R,2R)-N,N'-Dimethyl-1,2-cyclohexanediamine 1,4-Dioxane

Cesium carbonate

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Preparation Products

Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Suppliers

Global( 99)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Capot Chemical Co.,Ltd.	+86-（0）57185586718 +86-13336195806	sales@capot.com	China	29640	60
Accela ChemBio Inc.	+1-858-6993322 +86-18019713315	info@accelachem.com	United States	21193	58
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63687	58
CONIER CHEM AND PHARMA LIMITED		sales@conier.com	China	49979	58
career henan chemical co	+86-0371-86658258	factory@coreychem.com	China	29792	58
Dayang Chem (Hangzhou) Co.,Ltd.	+86-0571-88938639 17705817739	info@dycnchem.com	China	52704	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418684 +86-18949823763	sales@tnjchem.com	China	25356	58
PT CHEM GROUP LIMITED	+86-85511178; +86-85511178	peter68@ptchemgroup.com	China	35425	58
GIHI CHEMICALS CO.,LIMITED	+86-571-86217390; +8618058761490	info@gihichemicals.com	China	49895	58
Aladdin Scientific		tp@aladdinsci.com	United States	52923	58

Supplier	Advantage
Capot Chemical Co.,Ltd.	60
Accela ChemBio Inc.	58
Alchem Pharmtech,Inc.	58
CONIER CHEM AND PHARMA LIMITED	58
career henan chemical co	58
Dayang Chem (Hangzhou) Co.,Ltd.	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
PT CHEM GROUP LIMITED	58
GIHI CHEMICALS CO.,LIMITED	58
Aladdin Scientific	58

View Lastest Price from Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2019-12-31	Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate 188614-01-9	$1.00	1KG	99%	2000KGS	Career Henan Chemical Co

Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate
188614-01-9
$1.00
99%
Career Henan Chemical Co

Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Spectrum

Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate(188614-01-9)¹HNMR

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Methyl 3,4-dihydro-3-oxo-2H-benzo[b][1,4]thiazine-6-carboxylate Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Methyl-3-Oxo-3,4-Dihydro-2H-1, Methyl 3,4-dihydro-3-oxo-2H-1,4-benzothiazine-6-carboxylate methyl 3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazine-6-carboxylate 2-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate Methyl 3-Oxo-2H-1,4-benzothiazine-6-carboxylate 3-keto-4H-1,4-benzothiazine-6-carboxylic acid methyl ester 3-oxo-4H-1,4-benzothiazine-6-carboxylic acid methyl ester methyl 3-oxo-4H-1,4-benzothiazine-6-carboxylate JR-8617, Methyl 3,4-dihydro-3-oxo-2H-benzo[b][1,4]thiazine-6-carboxylate, 97% 2H-1,4-Benzothiazine-6-carboxylic acid, 3,4-dihydro-3-oxo-, methyl ester Methyl3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate,97% 188614-01-9 Fused Ring Systems Heterocycle intermediates Esters API intermediates