3-Bromoisatoic anhydride
- CAS No.
- 331646-98-1
- Chemical Name:
- 3-Bromoisatoic anhydride
- Synonyms
- 3-BROMOISATOIC ANHYDRIDE;8-Bromoisatoic anhydride;REF DUPL: 3-Bromoisatoic anhydride;8-bromo-1H-3,1-benzoxazine-2,4-dione;8-BROMO-1H-BENZO[D][1,3]OXAZINE-2,4-DIONE;2H-3,1-Benzoxazine-2,4(1H)-dione, 8-bromo-;8-broMo-2,4-dihydro-1H-3,1-benzoxazine-2,4-dione;8-Bromo-2H-3,1-benzoxazine-2,4(1H)-dione, 8-Bromo-1H-benzo[d][1,3]oxazine-2,4-dione
- CBNumber:
- CB3185160
- Molecular Formula:
- C8H4BrNO3
- Molecular Weight:
- 242.03
- MDL Number:
- MFCD06738735
- MOL File:
- 331646-98-1.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| 3-BROMOISATOIC ANHYDRIDE 97% | 66923 | 1G | $27 |
| 3-BROMOISATOIC ANHYDRIDE 97% | 66923 | 5G | $97 |
| 3-BROMOISATOIC ANHYDRIDE 97% | 66923 | 25G | $427 |
| 8-Bromo-1H-benzo[d][1,3]oxazine-2,4-dione ≥95%(NMR) | 17771 | 250MG | $89.13 |
| 8-Bromo-1H-benzo[d][1,3]oxazine-2,4-dione ≥95%(NMR) | 17771 | 1G | $188.28 |
| More product size | |||
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H335 |
| Precautionary statements | P280-P305+P351+P338 |
| HS Code | 2934999090 |
3-Bromoisatoic anhydride price More Price(65)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| AstaTech | 66923 | 3-BROMOISATOIC ANHYDRIDE 97% | 331646-98-1 | 1G | $27 | 2026-04-30 | Buy |
| AstaTech | 66923 | 3-BROMOISATOIC ANHYDRIDE 97% | 331646-98-1 | 5G | $97 | 2026-04-30 | Buy |
| AstaTech | 66923 | 3-BROMOISATOIC ANHYDRIDE 97% | 331646-98-1 | 25G | $427 | 2026-04-30 | Buy |
| Chem-Impex | 17771 | 8-Bromo-1H-benzo[d][1,3]oxazine-2,4-dione ≥95%(NMR) | 331646-98-1 | 250MG | $89.13 | 2026-05-19 | Buy |
| Chem-Impex | 17771 | 8-Bromo-1H-benzo[d][1,3]oxazine-2,4-dione ≥95%(NMR) | 331646-98-1 | 1G | $188.28 | 2026-05-19 | Buy |
3-Bromoisatoic anhydride Chemical Properties,Uses,Production
Preparation
3-Bromoisatoic anhydride is prepared from 7-bromo-3-carbaldehyde by stirring in a 4:1 mixture of CH3CN/H2O for 1 h at 40℃.
1 H NMR: δ11.08 (s, br., 1H), 8.02 (d, J = 7.8 Hz, 1H), 7.94 (d, J = 7.8 Hz, 1H), 7.19 (t, J = 7.8 Hz, 1H).
Synthesis
32315-10-9
20776-51-6
331646-98-1
A suspension was formed by adding 2-amino-5-bromobenzoic acid (10.0 g, 46.3 mmol, 1.0 eq.) to a 500 mL single neck round bottom flask fitted with a soccer shaped PTFE stirring bar (16 mm x 37 mm) followed by tetrahydrofuran (230 mL, 0.2 M) and solid triphosgene (13.7 g, 46.3 mmol, 1.0 eq.). The reaction vessel was placed in a unit fitted with a metal heating jacket and a 24/40 Liebig condenser was fitted to the neck of the reaction flask. The suspension was stirred at 500 rpm and the temperature of the heating jacket was set at 70°C. After about 30 minutes, the suspension became homogeneous and subsequently precipitated a white solid. The non-homogeneous reaction mixture was allowed to stand for 12 hours and then cooled to room temperature (25°C). The slurry was poured into a 600 mL beaker containing 250 mL of deionized water and equipped with an overhead mechanical stirrer (PTFE 75 mm paddle). Under vigorous stirring, the mixture became homogeneous and subsequently precipitated as a pale white solid. The solids were collected by vacuum filtration through a Brinell funnel (7.6 cm diameter, lined with Whatman 1 filter paper, 70 mm) and purged with air for 5 min. The resulting solid was transferred to a 250 mL conical flask fitted with a cylindrical stir bar and 50 mL of methanol was added. The slurry was stirred for 10 minutes and then vacuum filtered again. The filter cake was dried under vacuum (0.1 mmHg, 25 °C) for 12 h to afford 8-bromo-1H-benzo[d][1,3]oxazine-2,4-dione (9b) as a white powder in 90% yield.
References
[1] Beilstein Journal of Organic Chemistry, 2018, vol. 14, p. 2529 - 2536
[2] Journal of Agricultural and Food Chemistry, 2015, vol. 63, # 31, p. 6883 - 6889
[3] Patent: WO2016/206101, 2016, A1. Location in patent: Page/Page column 58
3-Bromoisatoic anhydride Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29815 | 58 |
| Accela ChemBio Inc. | +1-858-6993322 | info@accelachem.com | United States | 21193 | 58 |
| Wuhan Chemwish Technology Co., Ltd | 027-67849912 | sales@chemwish.com | CHINA | 10821 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | +86-0571-88938639 +8617705817739 | info@dycnchem.com | China | 52705 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418684 +8618949823763 | sales@tnjchem.com | China | 25356 | 58 |
| PT CHEM GROUP LIMITED | +86-85511178; | peter68@ptchemgroup.com | China | 35425 | 58 |
| GIHI CHEMICALS CO.,LIMITED | +86-571-86217390; +8618058761490 | info@gihichemicals.com | China | 49967 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20122 | 58 |
| Sichuan Biosynce Pharmatech Co., Ltd. | +8619950309693 | diane@biosynce.com | China | 4871 | 58 |
View Lastest Price from 3-Bromoisatoic anhydride manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
![8-BROMO-1H-BENZO[D][1,3]OXAZINE-2,4-DIONE pictures](https://img.chemicalbook.com/ProductImageEN/2018-8/Small/9dc66c4c-cc4a-47d2-9959-986bdadb6492.png) |
2019-07-06 | 8-BROMO-1H-BENZO[D][1,3]OXAZINE-2,4-DIONE
331646-98-1
|
$1.00 | 1KG | 95% | 500KG | Career Henan Chemical Co |
-
- 8-BROMO-1H-BENZO[D][1,3]OXAZINE-2,4-DIONE
331646-98-1
- $1.00
- 95%
- Career Henan Chemical Co
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