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1H-pyrido[2,3-d][1,3]oxazine-2,4-dione

1H-pyrido[2,3-d][1,3]oxazine-2,4-dione structure

CAS No.: 21038-63-1

Chemical Name:: 1H-pyrido[2,3-d][1,3]oxazine-2,4-dione

Synonyms: 2H-Pyrido[2,3-d][1,3]oxazine-2,4(1H)-dione;3-Azaisatoic anhydride;1H-pyrido[2,3-d][1,3]oxazine-2,4-dione;1H-pyridinebenzo[2,3-d][1,3]azine-2,4-dione;1H,2H,4H-pyrido[2,3-d][1,3]oxazine-2,4-dione;2,4-dihydro-1H-pyrido[2,3-d][1,3]oxazine-2,4-dione

CBNumber:: CB42514897

Molecular Formula:: C7H4N2O3

Molecular Weight:: 164.12

MDL Number:: MFCD09863994

MOL File:: 21038-63-1.mol

MSDS File:: SDS

Last updated:2026-05-28 02:16:23

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1H-pyrido[2,3-d][1,3]oxazine-2,4-dione Properties

Melting point	195.0 °C
Density	1.498±0.06 g/cm3(Predicted)
storage temp.	Inert atmosphere,Room Temperature
pka	9.13±0.20(Predicted)
Appearance	Light brown to gray Solid

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H302-H315-H319-H335
Precautionary statements	P261-P305+P351+P338
HazardClass	IRRITANT
HS Code	2934999090

1H-pyrido[2,3-d][1,3]oxazine-2,4-dione price More Price(31)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Biosynth	WAA03863	2H-Pyrido[2,3-d][1,3]oxazine-2,4(1H)-dione	21038-63-1	0.5g	$354	2026-06-05	Buy
Biosynth	WAA03863	2H-Pyrido[2,3-d][1,3]oxazine-2,4(1H)-dione	21038-63-1	5g	$1534	2026-06-05	Buy
Apolloscientific	OR321347	2H-Pyrido[2,3-d][1,3]oxazine-2,4(1H)-dione 95%	21038-63-1	100mg	$81	2026-06-04	Buy
Apolloscientific	OR321347	2H-Pyrido[2,3-d][1,3]oxazine-2,4(1H)-dione 95%	21038-63-1	250mg	$123	2026-06-04	Buy
Apolloscientific	OR321347	2H-Pyrido[2,3-d][1,3]oxazine-2,4(1H)-dione 95%	21038-63-1	1g	$301	2026-06-04	Buy

Product number	Packaging	Price	Buy
WAA03863	0.5g	$354	Buy
WAA03863	5g	$1534	Buy
OR321347	100mg	$81	Buy
OR321347	250mg	$123	Buy
OR321347	1g	$301	Buy

1H-pyrido[2,3-d][1,3]oxazine-2,4-dione Chemical Properties, Uses, Production

Synthesis Reference(s)

Journal of Heterocyclic Chemistry, 22, p. 193, 1985 DOI: 10.1002/jhet.5570220147

1H-pyrido[2,3-d][1,3]oxazine-2,4-dione synthesis

Synthesis of 1H-pyrido[2,3-d][1,3]oxazine-2,4-dione from 2,3-Pyridinedicarboxylic anhydride

1H-pyrido[2,3-d][1,3]oxazine-2,4-dione Preparation Products And Raw materials

Raw materials

Preparation Products

1-benzyl-1H-pyrido[2,3-d][1,3]oxazine-2,4-dione 1-isopentyl-1H-pyrido[2,3-d][1,3]oxazine-2,4-dione

1H-pyrido[2,3-d][1,3]oxazine-2,4-dione Suppliers

Global Suppliers ( 24)

Supplier	Tel	Email	Country	ProdList	Advantage
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.	025-66028182 17714375163	yftan@aikonchem.com	China	16674	50
Ningbo Materials-X Co., Ltd	0574-87487840-805 15888368997		China	473	55
Shanghai RenYue Chemical Technology Co., Ltd.	021-62219190; 18321139117	316441092@qq.com	China	3000	55
TaiChem Taizhou Limited	052386810091	zcwy9518@yeah.net	China	3917	58
Amadis Chemical Company Limited	571-89925085	sales@amadischem.com	China	131885	58
Bejing Famous Pharmaceutical Technology Co., Ltd.	010-80339217; 13331045123	2559355526@qq.com	China	14180	58
Energy Chemical	400-0056266	marketing1@energy-chemical.com	China	44927	58
Shanghai Haohong Pharmaceutical Co., Ltd.	400-8210725 4008210725	malulu@leyan.com	China	39796	58
Bide Pharmatech Ltd.	400-1647117 13681763483	product02@bidepharm.com	China	59929	58

Supplier	Advantage
J & K SCIENTIFIC LTD.	76
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.	50
Ningbo Materials-X Co., Ltd	55
Shanghai RenYue Chemical Technology Co., Ltd.	55
TaiChem Taizhou Limited	58
Amadis Chemical Company Limited	58
Bejing Famous Pharmaceutical Technology Co., Ltd.	58
Energy Chemical	58
Shanghai Haohong Pharmaceutical Co., Ltd.	58
Bide Pharmatech Ltd.	58

1H-pyrido[2,3-d][1,3]oxazine-2,4-dione Spectrum

1H-pyrido[2,3-d][1,3]oxazine-2,4-dione(21038-63-1)¹HNMR

21038-63-1 (1H-pyrido[2,3-d][1,3]oxazine-2,4-dione) Related Search:

1-benzyl-1H-pyrido[2,3-d][1,3]oxazine-2,4-dione 7-methyl-1H-pyrido[2,3-d][1,3]oxazine-2,4-dione 6-bromo-1H-pyrido[2,3-d][1,3]oxazine-2,4-dione 2H-Pyrido[2,3-d][1,3]oxazine-2,4(1H)-dione, 7-bromo- 1-methyl-1H-pyrido[2,3-d][1,3]oxazine-2,4-dione

1,7-dimethyl-1H-pyrido[2,3-d][1,3]oxazine-2,4-dione

1of2

1H,2H,4H-pyrido[2,3-d][1,3]oxazine-2,4-dione 3-Azaisatoic anhydride 1H-pyrido[2,3-d][1,3]oxazine-2,4-dione 1H-pyridinebenzo[2,3-d][1,3]azine-2,4-dione 2,4-dihydro-1H-pyrido[2,3-d][1,3]oxazine-2,4-dione 2H-Pyrido[2,3-d][1,3]oxazine-2,4(1H)-dione 21038-63-1