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ChemicalBook >> CAS DataBase List >> 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-8-CARBOXYLIC ACID

3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-8-CARBOXYLIC ACID

3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-8-CARBOXYLIC ACID price.
  • $19 - $2560
  • Product name: 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-8-CARBOXYLIC ACID
  • CAS: 208772-72-9
  • MF: C9H7NO4
  • MW: 193.16
  • EINECS:
  • MDL Number:MFCD11878407
  • Synonyms:2H-1,4-Benzoxazine-8-carboxylic acid, 3,4-dihydro-3-oxo-;3,4-Dihydro-3-oxo-2H-1,4-benzoxazine-8-carboxylicacid;3-Oxo-3,4-dihydro-2H-benzo[1,4]oxazine-8-carboxylic acid;3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-8-CARBOXYLIC ACID;3,4-Dihydro-3-oxo-2H-1,4-benzoxazine-8-carboxylic;3-hydroxy-2H-1,4-benzoxazine-8-carboxylic acid;3,4-dihydro-3-oxo-2H-benzo[b][1,4]oxazine-8-carboxylic acid
Price45 Properties Safety Information Description
45 prices
Selected condition：
Brand
  • aablocks
  • ACHEMBLOCK
  • AK Scientific
  • Alichem
  • American Custom Chemicals Corporation
  • Apolloscientific
  • Arctom
  • Biosynth
  • Chemenu
  • Crysdot
  • J&W Pharmlab
  • Matrix Scientific
  • SynQuest Laboratories
  • TRC
Package
  • 100mg
  • 250mg
  • 500mg
  • 1g
  • 2.5G
  • 5g
  • 25G
  • Manufactureraablocks
  • Product numberAA002JSY
  • Product description3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-8-CARBOXYLIC ACID 98%
  • Packaging250mg
  • Price$32
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA002JSY
  • Product description3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-8-CARBOXYLIC ACID 98%
  • Packaging100mg
  • Price$19
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA002JSY
  • Product description3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-8-CARBOXYLIC ACID 97%
  • Packaging500mg
  • Price$51
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA002JSY
  • Product description3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-8-CARBOXYLIC ACID 97%
  • Packaging1g
  • Price$85
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA002JSY
  • Product description3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-8-CARBOXYLIC ACID 97%
  • Packaging5g
  • Price$315
  • Updated2026-05-28
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberS77252
  • Product description3-hydroxy-2H-1,4-benzoxazine-8-carboxylic acid 97%
  • Packaging25G
  • Price$1900
  • Updated2026-05-25
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberS77252
  • Product description3-hydroxy-2H-1,4-benzoxazine-8-carboxylic acid 97%
  • Packaging25G
  • Price$1900
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberS77252
  • Product description3-hydroxy-2H-1,4-benzoxazine-8-carboxylic acid 97%
  • Packaging5G
  • Price$475
  • Updated2026-05-25
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberS77252
  • Product description3-hydroxy-2H-1,4-benzoxazine-8-carboxylic acid 97%
  • Packaging5G
  • Price$475
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberS77252
  • Product description3-hydroxy-2H-1,4-benzoxazine-8-carboxylic acid 97%
  • Packaging1G
  • Price$115
  • Updated2026-05-25
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberS77252
  • Product description3-hydroxy-2H-1,4-benzoxazine-8-carboxylic acid 97%
  • Packaging1G
  • Price$115
  • Updated2026-05-27
  • Buy
  • ManufacturerAK Scientific
  • Product number0678AB
  • Product description3-Oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-8-carboxylicacid
  • Packaging500mg
  • Price$454
  • Updated2021-12-16
  • Buy
  • ManufacturerAlichem
  • Product number208772729
  • Product description3-Oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-8-carboxylicacid
  • Packaging1g
  • Price$262.64
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0121271
  • Product description3-OXO-3,4-DIHYDRO-2H-1,4-BENZOXAZINE-8-CARBOXYLIC ACID 95.00%
  • Packaging1G
  • Price$808.89
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0121271
  • Product description3-OXO-3,4-DIHYDRO-2H-1,4-BENZOXAZINE-8-CARBOXYLIC ACID 95.00%
  • Packaging2.5G
  • Price$1147.43
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0121271
  • Product description3-OXO-3,4-DIHYDRO-2H-1,4-BENZOXAZINE-8-CARBOXYLIC ACID 95.00%
  • Packaging5G
  • Price$1421.65
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA002JSY 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-8-CARBOXYLIC ACID 98% 250mg $32 2026-05-28 Buy
aablocks AA002JSY 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-8-CARBOXYLIC ACID 98% 100mg $19 2026-05-28 Buy
aablocks AA002JSY 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-8-CARBOXYLIC ACID 97% 500mg $51 2026-05-28 Buy
aablocks AA002JSY 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-8-CARBOXYLIC ACID 97% 1g $85 2026-05-28 Buy
aablocks AA002JSY 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-8-CARBOXYLIC ACID 97% 5g $315 2026-05-28 Buy
ACHEMBLOCK S77252 3-hydroxy-2H-1,4-benzoxazine-8-carboxylic acid 97% 25G $1900 2026-05-25 Buy
ACHEMBLOCK S77252 3-hydroxy-2H-1,4-benzoxazine-8-carboxylic acid 97% 25G $1900 2026-05-27 Buy
ACHEMBLOCK S77252 3-hydroxy-2H-1,4-benzoxazine-8-carboxylic acid 97% 5G $475 2026-05-25 Buy
ACHEMBLOCK S77252 3-hydroxy-2H-1,4-benzoxazine-8-carboxylic acid 97% 5G $475 2026-05-27 Buy
ACHEMBLOCK S77252 3-hydroxy-2H-1,4-benzoxazine-8-carboxylic acid 97% 1G $115 2026-05-25 Buy
ACHEMBLOCK S77252 3-hydroxy-2H-1,4-benzoxazine-8-carboxylic acid 97% 1G $115 2026-05-27 Buy
AK Scientific 0678AB 3-Oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-8-carboxylicacid 500mg $454 2021-12-16 Buy
Alichem 208772729 3-Oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-8-carboxylicacid 1g $262.64 2021-12-16 Buy
American Custom Chemicals Corporation CHM0121271 3-OXO-3,4-DIHYDRO-2H-1,4-BENZOXAZINE-8-CARBOXYLIC ACID 95.00% 1G $808.89 2021-12-16 Buy
American Custom Chemicals Corporation CHM0121271 3-OXO-3,4-DIHYDRO-2H-1,4-BENZOXAZINE-8-CARBOXYLIC ACID 95.00% 2.5G $1147.43 2021-12-16 Buy
American Custom Chemicals Corporation CHM0121271 3-OXO-3,4-DIHYDRO-2H-1,4-BENZOXAZINE-8-CARBOXYLIC ACID 95.00% 5G $1421.65 2021-12-16 Buy
Next Last

Properties

Boiling point :464.5±45.0 °C(Predicted)
Density :1.459±0.06 g/cm3(Predicted)
storage temp. :Store at room temperature
pka :3.13±0.20(Predicted)
Appearance :Brown to reddish brown Solid

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H312 Harmful in contact with skin Acute toxicity,dermal Category 4 Warning P280,P302+P352, P312, P322, P363,P501
H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P330 Rinse mouth.
P363 Wash contaminated clothing before reuse.
P501 Dispose of contents/container to..…

Description

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Suppliers and manufacturers

Guangzhou Yuheng Pharmaceutical Technology Co., Ltd Chengdu Forest Science and Technology Development Co., Ltd. JW & Y Pharmlab Co., Ltd. Changzhou Hopschain Chemical Co.,Ltd. Amatek Scientific Co. Ltd. Aikon International Limited Shanghai WangFa Chemical Technology Co., Ltd. Shanghai SPAR pharmaceutical technology co., LTD Chengdu Feibai Pharmaceutical Co., Ltd. Shanghai zhigan biotechnology co., LTD