4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid

$21 - $9558
Product name: 4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid
CAS: 674304-28-0
MF: C10H9NO4
MW: 207.18
EINECS:
MDL Number:MFCD11553038
Synonyms:4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid;4-methyl-3-oxo-1,4-benzoxazine-7-carboxylic acid;3,4-dihydro-4-methyl-3-oxo-2H-benzo[b][1,4]oxazine-7-carboxylic acid;2H-1,4-Benzoxazine-7-carboxylic acid, 3,4-dihydro-4-methyl-3-oxo-

Price13 Properties Safety Information Description

13 prices

Selected condition：

Brand

aablocks
ACHEMBLOCK
Apolloscientific
Biosynth
Chemenu
Crysdot
Matrix Scientific
SynQuest Laboratories

Package

100mg
250MG
500mg
1G
5G
10g

Manufactureraablocks
Product numberAA00ISQ7
Product description4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid 98%
Packaging100mg
Price$51
Updated2026-05-29
Buy

ManufacturerACHEMBLOCK
Product numberT94433
Product description3,4-dihydro-4-methyl-3-oxo-2H-benzo[b][1,4]oxazine-7-carboxylic acid 95%
Packaging5G
Price$1295
Updated2026-05-27
Buy

ManufacturerACHEMBLOCK
Product numberT94433
Product description3,4-dihydro-4-methyl-3-oxo-2H-benzo[b][1,4]oxazine-7-carboxylic acid 95%
Packaging1G
Price$450
Updated2026-05-27
Buy

ManufacturerACHEMBLOCK
Product numberT94433
Product description3,4-dihydro-4-methyl-3-oxo-2H-benzo[b][1,4]oxazine-7-carboxylic acid 95%
Packaging250MG
Price$175
Updated2026-05-27
Buy

ManufacturerApolloscientific
Product numberOR110759
Product description4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid ≥95%
Packaging250mg
Price$21
Updated2026-06-04
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ManufacturerApolloscientific
Product numberOR110759
Product description4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid ≥95%
Packaging1g
Price$32
Updated2026-06-04
Buy

ManufacturerBiosynth
Product numberZBB30428
Product description4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid
Packaging1g
Price$2926.4
Updated2026-06-05
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ManufacturerBiosynth
Product numberZBB30428
Product description4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid
Packaging10g
Price$9558
Updated2026-06-05
Buy

ManufacturerChemenu
Product numberCM309988
Product description4-Methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-carboxylic acid 95%
Packaging1g
Price$474
Updated2026-05-26
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ManufacturerCrysdot
Product numberCD11074776
Product description4-Methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-carboxylic acid 95+%
Packaging1g
Price$427
Updated2026-05-26
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ManufacturerMatrix Scientific
Product number047539
Product description4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid >95%
Packaging500mg
Price$362
Updated2021-12-16
Buy

ManufacturerSynQuest Laboratories
Product number4H48-1-KY
Product description4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid
Packaging250mg
Price$109
Updated2021-12-16
Buy

ManufacturerSynQuest Laboratories
Product number4H48-1-KY
Product description4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid
Packaging1g
Price$320
Updated2021-12-16
Buy

Manufacturer	Product number	Product description	Packaging	Price	Updated	Buy
aablocks	AA00ISQ7	4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid 98%	100mg	$51	2026-05-29	Buy
ACHEMBLOCK	T94433	3,4-dihydro-4-methyl-3-oxo-2H-benzo[b][1,4]oxazine-7-carboxylic acid 95%	5G	$1295	2026-05-27	Buy
ACHEMBLOCK	T94433	3,4-dihydro-4-methyl-3-oxo-2H-benzo[b][1,4]oxazine-7-carboxylic acid 95%	1G	$450	2026-05-27	Buy
ACHEMBLOCK	T94433	3,4-dihydro-4-methyl-3-oxo-2H-benzo[b][1,4]oxazine-7-carboxylic acid 95%	250MG	$175	2026-05-27	Buy
Apolloscientific	OR110759	4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid ≥95%	250mg	$21	2026-06-04	Buy
Apolloscientific	OR110759	4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid ≥95%	1g	$32	2026-06-04	Buy
Biosynth	ZBB30428	4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid	1g	$2926.4	2026-06-05	Buy
Biosynth	ZBB30428	4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid	10g	$9558	2026-06-05	Buy
Chemenu	CM309988	4-Methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-carboxylic acid 95%	1g	$474	2026-05-26	Buy
Crysdot	CD11074776	4-Methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-carboxylic acid 95+%	1g	$427	2026-05-26	Buy
Matrix Scientific	047539	4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid >95%	500mg	$362	2021-12-16	Buy
SynQuest Laboratories	4H48-1-KY	4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid	250mg	$109	2021-12-16	Buy
SynQuest Laboratories	4H48-1-KY	4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid	1g	$320	2021-12-16	Buy

Properties

Melting point :263-265°
Boiling point :527.8±50.0 °C(Predicted)
Density :1.405±0.06 g/cm3(Predicted)
storage temp. :Storage temp. 2-8°C
pka :3.73±0.20(Predicted)
Appearance :Off-white to light brown Solid

Safety Information

Symbol(GHS):

Signal word:

Warning

Hazard statements:

Code	Hazard statements	Hazard class	Category	Signal word	P-Codes
H315	Causes skin irritation	Skin corrosion/irritation	Category 2	Warning	P264, P280, P302+P352, P321,P332+P313, P362
H319	Causes serious eye irritation	Serious eye damage/eye irritation	Category 2A	Warning	P264, P280, P305+P351+P338,P337+P313P
H335	May cause respiratory irritation	Specific target organ toxicity, single exposure;Respiratory tract irritation	Category 3	Warning

Precautionary statements:

P261	Avoid breathing dust/fume/gas/mist/vapours/spray.
P271	Use only outdoors or in a well-ventilated area.
P280	Wear protective gloves/protective clothing/eye protection/face protection.

Description

Suppliers and manufacturers

Wuhan Chemwish Technology Co., Ltd Zhengzhou Guancheng Laboratory equipment Sales Changzhou Hopschain Chemical Co.,Ltd. Baimei Jihua (Henan) Pharmaceutical Technology Co., Ltd Changzhou Qianai Biotechnology Co., Ltd Yantai Shengkailun Chemical Technology Co., Ltd. Shanghai Ken chemical Technology Co.,ltd

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