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

4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid Structure
4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid structure
CAS No.
674304-28-0
Chemical Name:
4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid
Synonyms
4-methyl-3-oxo-1,4-benzoxazine-7-carboxylic acid;4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid;2H-1,4-Benzoxazine-7-carboxylic acid, 3,4-dihydro-4-methyl-3-oxo-;3,4-dihydro-4-methyl-3-oxo-2H-benzo[b][1,4]oxazine-7-carboxylic acid
CBNumber:
CB81552328
Molecular Formula:
C10H9NO4
Molecular Weight:
207.18
MDL Number:
MFCD11553038
MOL File:
674304-28-0.mol
Last updated:2026-05-28 04:57:13
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4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid 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

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P271-P261-P280
HazardClass  IRRITANT
HS Code  2934999090

4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid price More Price(13)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Biosynth ZBB30428 4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid 674304-28-0 1g $2926.4 2026-06-05 Buy
Biosynth ZBB30428 4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid 674304-28-0 10g $9558 2026-06-05 Buy
Apolloscientific OR110759 4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid ≥95% 674304-28-0 250mg $21 2026-06-04 Buy
Apolloscientific OR110759 4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid ≥95% 674304-28-0 1g $32 2026-06-04 Buy
aablocks AA00ISQ7 4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid 98% 674304-28-0 100mg $51 2026-05-29 Buy
Product number Packaging Price Buy
ZBB30428 1g $2926.4 Buy
ZBB30428 10g $9558 Buy
OR110759 250mg $21 Buy
OR110759 1g $32 Buy
AA00ISQ7 100mg $51 Buy

4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid Preparation Products And Raw materials

Raw materials

Preparation Products

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

Global Suppliers ( 15)
Supplier Tel Email Country ProdList Advantage
Wuhan Chemwish Technology Co., Ltd 86-027-67849912 sales@chemwish.com China 35884 56
Zhengzhou Guancheng Laboratory equipment Sales 0371-88888888 qq272369594;2159423853qq 2723695949@qq.com China 4990 50
Changzhou Hopschain Chemical Co.,Ltd. 85528066 13775048983 sales@hopschem.com China 31548 55
Baimei Jihua (Henan) Pharmaceutical Technology Co., Ltd 0371-88900765 18037465274 3430974218@qq.com China 14171 58
Changzhou Qianai Biotechnology Co., Ltd 051915240519135 13961152745 yudiguimo@126.COM China 9999 58
Yantai Shengkailun Chemical Technology Co., Ltd. 13356901049 mark@sklnchem.cn China 9925 58
Shanghai Ken chemical Technology Co.,ltd 13701870891; 02152215958 47697177@qq.com China 10000 58
Supplier Advantage
Wuhan Chemwish Technology Co., Ltd 56
Zhengzhou Guancheng Laboratory equipment Sales 50
Changzhou Hopschain Chemical Co.,Ltd. 55
Baimei Jihua (Henan) Pharmaceutical Technology Co., Ltd 58
Changzhou Qianai Biotechnology Co., Ltd 58
Yantai Shengkailun Chemical Technology Co., Ltd. 58
Shanghai Ken chemical Technology Co.,ltd 58

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

4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylic acid(674304-28-0)1HNMR
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- 674304-28-0