3-OXO-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE-6-CARBALDEHYDE

Modify Date: 2025-08-26 16:46:18

3-OXO-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE-6-CARBALDEHYDE Structure
3-OXO-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE-6-CARBALDEHYDE structure
 Common Name 3-OXO-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE-6-CARBALDEHYDE
CAS Number 443956-11-4 Molecular Weight 178.145
Density 1.4±0.1 g/cm3 Boiling Point 425.5±45.0 °C at 760 mmHg
Molecular Formula C8H6N2O3 Melting Point N/A
MSDS N/A Flash Point 211.1±28.7 °C

 Names

Name 3-oxo-4H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.4±0.1 g/cm3
Boiling Point 425.5±45.0 °C at 760 mmHg
Molecular Formula C8H6N2O3
Molecular Weight 178.145
Flash Point 211.1±28.7 °C
Exact Mass 178.037842
PSA 71.78000
LogP 0.50
Vapour Pressure 0.0±1.0 mmHg at 25°C
Index of Refraction 1.619

 Safety Information

HS Code 2934999090

 Synthetic Route

6-bromo-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one structure

6-bromo-2H-pyri...

CAS#:337463-88-4

carbon monoxide structure

carbon monoxide

CAS#:201230-82-2

~72%

3-OXO-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE-6-CARBALDEHYDE Structure

3-OXO-3,4-DIHYD...

CAS#:443956-11-4

Literature: Hameed P., Shahul; Shanbhag, Gajanan; Shinde, Vikas; Chinnapattu, Murugan; Manjrekar, Praveena; Puttur, Jayashree; Patil, Vikas; Ugarkar, Bheemarao Synthetic Communications, 2013 , vol. 43, # 24 p. 3315 - 3321
6-(HYDROXYMETHYL)-2H-PYRIDO[3,2-B][1,4]OXAZIN-3(4H)-ONE structure

6-(HYDROXYMETHY...

CAS#:615568-38-2

~72%

3-OXO-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE-6-CARBALDEHYDE Structure

3-OXO-3,4-DIHYD...

CAS#:443956-11-4

Literature: SMITHKLINE BEECHAM P.L.C. Patent: WO2003/87098 A1, 2003 ; Location in patent: Page/Page column 73 ;
(E)-6-styryl-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one structure

(E)-6-styryl-2H...

CAS#:443956-10-3

~84%

3-OXO-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE-6-CARBALDEHYDE Structure

3-OXO-3,4-DIHYD...

CAS#:443956-11-4

Literature: Singh, Sheo B.; Kaelin, David E.; Wu, Jin; Miesel, Lynn; Tan, Christopher M.; Meinke, Peter T.; Olsen, David; Lagrutta, Armando; Bradley, Prudence; Lu, Jun; Patel, Sangita; Rickert, Keith W.; Smith, Robert F.; Soisson, Stephen; Wei, Changqing; Fukuda, Hideyuki; Kishii, Ryuta; Takei, Masaya; Fukuda, Yasumichi ACS Medicinal Chemistry Letters, 2014 , vol. 5, # 5 p. 609 - 614
6-styryl-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one structure

6-styryl-2H-pyr...

CAS#:911485-89-7

~79%

3-OXO-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE-6-CARBALDEHYDE Structure

3-OXO-3,4-DIHYD...

CAS#:443956-11-4

Literature: Brooks, Gerald; Dabbs, Steven; Davies, David T.; Hennessy, Alan J.; Jones, Graham E.; Markwell, Roger E.; Miles, Timothy J.; Owston, Nathan A.; Pearson, Neil D.; Peng, Tony W. Tetrahedron Letters, 2010 , vol. 51, # 38 p. 5035 - 5037
6-Bromo-2-nitro-3-pyridinol structure

6-Bromo-2-nitro...

CAS#:443956-08-9

~%

3-OXO-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE-6-CARBALDEHYDE Structure

3-OXO-3,4-DIHYD...

CAS#:443956-11-4

Literature: Hameed P., Shahul; Shanbhag, Gajanan; Shinde, Vikas; Chinnapattu, Murugan; Manjrekar, Praveena; Puttur, Jayashree; Patil, Vikas; Ugarkar, Bheemarao Synthetic Communications, 2013 , vol. 43, # 24 p. 3315 - 3321
[(6-bromo-2-nitropyridin-3-yl)oxy]acetic acid ethyl ester structure

[(6-bromo-2-nit...

CAS#:443956-09-0

~%

3-OXO-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE-6-CARBALDEHYDE Structure

3-OXO-3,4-DIHYD...

CAS#:443956-11-4

Literature: Hameed P., Shahul; Shanbhag, Gajanan; Shinde, Vikas; Chinnapattu, Murugan; Manjrekar, Praveena; Puttur, Jayashree; Patil, Vikas; Ugarkar, Bheemarao Synthetic Communications, 2013 , vol. 43, # 24 p. 3315 - 3321
6-bromo-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one structure

6-bromo-2H-pyri...

CAS#:337463-88-4

carbon monoxide structure

carbon monoxide

CAS#:201230-82-2

~%

4H-pyrido[3,2-b][1,4]oxazin-3-one structure

4H-pyrido[3,2-b...

CAS#:20348-09-8

3-OXO-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE-6-CARBALDEHYDE Structure

3-OXO-3,4-DIHYD...

CAS#:443956-11-4

Literature: Hameed P., Shahul; Shanbhag, Gajanan; Shinde, Vikas; Chinnapattu, Murugan; Manjrekar, Praveena; Puttur, Jayashree; Patil, Vikas; Ugarkar, Bheemarao Synthetic Communications, 2013 , vol. 43, # 24 p. 3315 - 3321
2-Nitro-3-pyridinol structure

2-Nitro-3-pyridinol

CAS#:15128-82-2

~%

3-OXO-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE-6-CARBALDEHYDE Structure

3-OXO-3,4-DIHYD...

CAS#:443956-11-4

Literature: KYORIN PHARMACEUTICAL CO., LTD.; MERCK SHARP and DOHME CORP.; FUKUDA, Yasumichi; KAELIN, David E. Jr.; SINGH, Sheo B. Patent: WO2013/3383 A1, 2013 ;
6-bromo-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one structure

6-bromo-2H-pyri...

CAS#:337463-88-4

~%

3-OXO-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE-6-CARBALDEHYDE Structure

3-OXO-3,4-DIHYD...

CAS#:443956-11-4

Literature: KYORIN PHARMACEUTICAL CO., LTD.; MERCK SHARP and DOHME CORP.; FUKUDA, Yasumichi; KAELIN, David E. Jr.; SINGH, Sheo B. Patent: WO2013/3383 A1, 2013 ;

 Customs

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde
2H-Pyrido[3,2-b]-1,4-oxazine-6-carboxaldehyde, 3,4-dihydro-3-oxo-
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Chemsrc provides CAS#:443956-11-4 MSDS, density, melting point, boiling point, structure, etc. Its name is 3-OXO-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE-6-CARBALDEHYDE>> amp version: 3-OXO-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE-6-CARBALDEHYDE

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