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7-Methoxy-2H-1,4-benzoxazin-3(4H)-one

CAS No.
6529-94-8
Chemical Name:
7-Methoxy-2H-1,4-benzoxazin-3(4H)-one
Synonyms
7-methoxy-4H-1,4-benzoxazin-3-one;7-Methoxy-2H-1,4-benzoxazin-3(4H)-one;2H-1,4-Benzoxazin-3(4H)-one, 7-methoxy-;7-Methoxy-2H-benzo[b][1,4]oxazin-3(4H)-one;7-Methoxy-3,4-dihydro-2H-1,4-benzoxazin-3-one;7-methoxy-2H-benzenebenzo[b][1,4]azine-3(4H)-one
CBNumber:
CB02448488
Molecular Formula:
C9H9NO3
Molecular Weight:
179.17
MDL Number:
MFCD06252105
MOL File:
6529-94-8.mol
MSDS File:
SDS
Last updated:2026-09-12 18:48:00

7-Methoxy-2H-1,4-benzoxazin-3(4H)-one Properties

Melting point 158-160 °C(Solv: ethyl acetate (141-78-6); hexane (110-54-3))
Boiling point 374.0±42.0 °C(Predicted)
Density 1.245±0.06 g/cm3(Predicted)
storage temp. Sealed in dry,Room Temperature
pka 12.12±0.20(Predicted)
Appearance Brown to black Solid

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P305+P351+P338

7-Methoxy-2H-1,4-benzoxazin-3(4H)-one price More Price(29)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Biosynth GAA52994 7-Methoxy-2H-benzo[b][1,4]oxazin-3(4H)-one 6529-94-8 5g $649 2026-06-04 Buy
Biosynth GAA52994 7-Methoxy-2H-benzo[b][1,4]oxazin-3(4H)-one 6529-94-8 10g $778.8 2026-06-04 Buy
Matrix Scientific 309864 7-Methoxy-2H-benzo[b][1,4]oxazin-3(4H)-one 6529-94-8 250.00mg $41 2026-05-19 Buy
Matrix Scientific 309864 7-Methoxy-2H-benzo[b][1,4]oxazin-3(4H)-one 6529-94-8 1.00g $62 2026-05-19 Buy
Matrix Scientific 309864 7-Methoxy-2H-benzo[b][1,4]oxazin-3(4H)-one 6529-94-8 5.00g $278 2026-05-19 Buy
Product number Packaging Price Buy
GAA52994 5g $649 Buy
GAA52994 10g $778.8 Buy
309864 250.00mg $41 Buy
309864 1.00g $62 Buy
309864 5.00g $278 Buy

7-Methoxy-2H-1,4-benzoxazin-3(4H)-one Chemical Properties, Uses, Production

Synthesis

Acetonitrile, 2-(5-methoxy-2-nitrophenoxy)-

1268818-19-4

7-METHOXY-2H-1,4-BENZOXAZIN-3(4H)-ONE

6529-94-8

GENERAL METHOD: 2a (2 mmol) was dissolved in acetic acid (10 mL) and powdered iron (12 mmol) was added with stirring. The reaction mixture was heated to reflux for 2 hours, during which time the progress of the reaction was monitored by thin layer chromatography (TLC). Upon completion of the reaction, the mixture was cooled to room temperature and concentrated under reduced pressure to remove acetic acid. Ethyl acetate (EtOAc, 20 mL) was added, stirred for 2 min and filtered to remove iron impurities. The insoluble iron residue was washed with ethyl acetate (20 mL). The filtrate and washings were combined and dried with anhydrous magnesium sulfate (MgSO4). The solvent was removed by concentration under reduced pressure and the resulting crude product was purified by column chromatography to give the pure product 3a.

References

[1] Tetrahedron, 2011, vol. 67, # 6, p. 1187 - 1192
[2] European Journal of Medicinal Chemistry, 2017, vol. 132, p. 90 - 107

7-Methoxy-2H-1,4-benzoxazin-3(4H)-one Preparation Products And Raw materials

7-Methoxy-2H-1,4-benzoxazin-3(4H)-one Suppliers

Global Suppliers ( 42)
Supplier Tel Email Country ProdList Advantage
PharmaBlock Sciences (Nanjing),Inc. 025-86918202 4000255188 sales@pharmablock.com China 5000 55
Shanghai Synthfine Chemical Co.,Ltd 15921303235 sales@synthfine.com China 994 58
Shanghai Raise Chemical Technology Co.,Ltd 15026594951 rs@raise-chem.com China 4904 55
Shanghai Xingui Biotechnology Co., Ltd. 15121041756 xingui2022@126.com China 9954 58
Cool Pharm, Ltd 021-60455363 18019463053 sales@coolpharm.com China 8455 58
Amadis Chemical Company Limited 571-89925085 sales@amadischem.com China 131885 58
Shanghai Bank Pharma Limited 2221346380 17701603001 bankpharma@163.com China 376 58
Amatek Scientific Co. Ltd. 0512-56316828 400-867-5858;400-867-5858 info@amateksci.com China 28760 58
Aikon International Limited 025-66061636 19370895928 qqyang@aikonchem.com China 15810 58
Shanghai ZiHao Pharmaceutical Co., Ltd. 021-13482410-12 13482410112; 362383684@qq.com China 751 58

7-Methoxy-2H-1,4-benzoxazin-3(4H)-one Spectrum

7-Methoxy-3,4-dihydro-2H-1,4-benzoxazin-3-one 7-Methoxy-2H-benzo[b][1,4]oxazin-3(4H)-one 2H-1,4-Benzoxazin-3(4H)-one, 7-methoxy- 7-methoxy-4H-1,4-benzoxazin-3-one 7-methoxy-2H-benzenebenzo[b][1,4]azine-3(4H)-one 7-Methoxy-2H-1,4-benzoxazin-3(4H)-one 6529-94-8