ChemicalBook > CAS DataBase List > 7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine
7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine
- Product Name
- 7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine
- CAS No.
- 34950-82-8
- Chemical Name
- 7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine
- Synonyms
- 7-bromo-2H,3H,4H-pyrido[3,2-b][1,4]oxazine;7-bromo-3,4-dihydro-2H-pyrido[3,2-β][1,4]oxazine;7-BROMO-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE;2H-Pyrido[3,2-b]-1,4-oxazine, 7-bromo-3,4-dihydro-
- CBNumber
- CB8853534
- Molecular Formula
- C7H7BrN2O
- Formula Weight
- 215.05
- MOL File
- 34950-82-8.mol
More
Less
7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine Property
- Melting point:
- 116 °C
- Boiling point:
- 316.8±42.0 °C(Predicted)
- Density
- 1.619±0.06 g/cm3(Predicted)
- storage temp.
- Keep in dark place,Sealed in dry,Room Temperature
- pka
- 7.32±0.20(Predicted)
- form
- solid
- Appearance
- Light yellow to green yellow Solid
More
Less
Safety
- WGK Germany
- 3
- HazardClass
- IRRITANT
More
Less
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P321Specific treatment (see … on this label).
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P362Take off contaminated clothing and wash before reuse.
More
Less
N-Bromosuccinimide Price
Sigma-Aldrich
- Product number
- ADE001250
- Product name
- 7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine
- Purity
- Aldrich
- Packaging
- 1g
- Price
- $817
- Updated
- 2025/07/31
TRC
- Product number
- B699683
- Product name
- 7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine
- Packaging
- 50mg
- Price
- $45
- Updated
- 2021/12/16
TRC
- Product number
- B699683
- Product name
- 7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine
- Packaging
- 100mg
- Price
- $60
- Updated
- 2021/12/16
TRC
- Product number
- B699683
- Product name
- 7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine
- Packaging
- 500mg
- Price
- $130
- Updated
- 2021/12/16
Matrix Scientific
- Product number
- 048483
- Product name
- 7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine
- Packaging
- 250mg
- Price
- $342
- Updated
- 2021/12/16
More
Less
7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine Chemical Properties,Usage,Production
Synthesis
20348-23-6
34950-82-8
3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine (500 mg, 3.67 mmol) was used as starting material and dissolved in DMF (10 mL). To this solution was added N-bromosuccinimide (NBS, 719 mg, 4.04 mmol) at 0 °C. The reaction mixture was stirred continuously for 2 h at 0 °C. Upon completion of the reaction, the reaction was quenched with saturated aqueous NaHCO3 solution and stirring was continued for 20 min at 0 °C. The resulting precipitate was collected by filtration and the solid product was washed with water and dried under vacuum to afford 7-bromo-3,4-dihydro-2H-pyrido[3,2-b]-1,4-oxazine (549 mg, 2.55 mmol, 69.5% yield) as a brown solid. The product was analyzed by mass spectrometry (ESI+) with a measured value of 215.2 (M + H).1H NMR (300 MHz, CDCl3) δ: 3.50-3.58 (2H, m), 4.18-4.26 (2H, m), 4.82 (1H, brs), 7.10 (1H, d, J = 1.9 Hz), 7.72 (1H, d, J = 2.3 Hz).
References
[1] Patent: WO2018/30550, 2018, A1. Location in patent: Paragraph 0596
[2] Patent: EP2341052, 2011, A1. Location in patent: Page/Page column 40
[3] Acta Chemica Scandinavica (1947-1973), 1971, vol. 25, p. 3135 - 3143
[4] Patent: KR101576386, 2015, B1. Location in patent: Paragraph 0158-0160
7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine Preparation Products And Raw materials
Raw materials
Preparation Products
More
Less
7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine Suppliers
- Tel
- 18210857532; 18210857532
- Fax
- 86-10-82849933
- jkinfo@jkchemical.com
- Country
- China
- ProdList
- 96815
- Advantage
- 76
- Tel
- 86-027-67849912
- Fax
- 86-027-87531808
- sales@chemwish.com
- Country
- China
- ProdList
- 35896
- Advantage
- 56
- Tel
- +86 (0) 571 85 58 67 18
- Fax
- 0086-571-85864795
- Country
- China
- ProdList
- 18207
- Advantage
- 66
- Tel
- 021-50795510 4000665055
- Fax
- 021-50795055
- sales@accelachem.com
- Country
- China
- ProdList
- 11035
- Advantage
- 64
- Tel
- 86-21-34053660
- Fax
- 86-21-34053661
- sale@labgogo.com
- Country
- China
- ProdList
- 9865
- Advantage
- 52
- Tel
- 800-810-5118
- Fax
- +86-10-84193589
- cnchemical@thermofisher.com
- Country
- China
- ProdList
- 17770
- Advantage
- 75
- Tel
- 025-66113011 17798518460
- Fax
- (1)02557626880
- cfzhang@aikonchem.com
- Country
- China
- ProdList
- 19913
- Advantage
- 55
- Tel
- 021-54849683 13601642561
- Fax
- +86-21-54375689
- sales@keepontech.com
- Country
- China
- ProdList
- 998
- Advantage
- 59
- Tel
- 4009209199
- Fax
- 86-021-52271987
- sales@9dingchem.com
- Country
- China
- ProdList
- 22514
- Advantage
- 55
- Tel
- 400-164-7117 13681763483
- Fax
- +86-21-61629029
- product02@bidepharm.com
- Country
- China
- ProdList
- 39966
- Advantage
- 60
- Tel
- 400-1166-196 13458535857
- Fax
- QQ：800101999
- cdhxsj@163.com
- Country
- China
- ProdList
- 13350
- Advantage
- 58
- Tel
- 微信 17321281695 18019252918
- Fax
- 17321281695
- sale@amkchem.com
- Country
- China
- ProdList
- 15136
- Advantage
- 55
- Tel
- 0731-88827538 15873153880
- Fax
- 0731-88827238
- luxingbc@126.com
- Country
- China
- ProdList
- 1995
- Advantage
- 65
- Tel
- 13817873692
- Fax
- 021-31329586
- mkt@boynerspharm.com
- Country
- China
- ProdList
- 1707
- Advantage
- 55
- Tel
- 13162380607
- Fax
- QQ:1696175688
- 1696175688@qq.com
- Country
- China
- ProdList
- 817
- Advantage
- 55
- Tel
- 0512-0512-52358471 17715136450
- Fax
- 05125235 6881
- sales@shiyabiopharm.com
- Country
- China
- ProdList
- 12127
- Advantage
- 58
- Tel
- 021-20242659 18930833303
- Fax
- +86 (21) 2024-2659
- Sales@changyanchem.cn
- Country
- China
- ProdList
- 5001
- Advantage
- 55
- Tel
- 571-89925085
- Fax
- 0086-571-89925065
- sales@amadischem.com
- Country
- China
- ProdList
- 131957
- Advantage
- 58
- Tel
- 021-021-021-31663258 13795219287
- Fax
- 021-31663258
- donghuanwen@126.com
- Country
- China
- ProdList
- 8816
- Advantage
- 58
- Tel
- +86-（0）57185586718; +8613336195806
- Fax
- +86-571-85864795
- sales@capot.com
- Country
- China
- ProdList
- 29735
- Advantage
- 60
- Tel
- 13370351217 kungfu1217@1
- Fax
- QQ1400885609
- kungfu1217@163.com
- Country
- China
- ProdList
- 2720
- Advantage
- 58
- Tel
- 4009004166/18616739031 18616739031
- 3007523370@qq.com
- Country
- China
- ProdList
- 52687
- Advantage
- 58
- Tel
- 021-58581007 18019463053
- Fax
- 021-50966098
- sales@coolpharm.com
- Country
- China
- ProdList
- 12878
- Advantage
- 58
- Tel
- +86-400-002-6226 +86-13028896684;
- sales@rrkchem.com
- Country
- China
- ProdList
- 57422
- Advantage
- 58
- Tel
- 18616764616
- Fax
- 2330697233
- 1715037088@qq.com
- Country
- China
- ProdList
- 357
- Advantage
- 58
- Tel
- 0371-55055611 18137792234
- Fax
- QQ：3002694073
- 3002694073@qq.com
- Country
- China
- ProdList
- 9987
- Advantage
- 58
- Tel
- +86-0551-65418671 +8618949823763
- Fax
- 0551-65418697
- sales@tnjchem.com
- Country
- China
- ProdList
- 34563
- Advantage
- 58
- Tel
- +86-0371-86658258 +8613203830695
- Fax
- 0371-86658258
- laboratory@coreychem.com
- Country
- China
- ProdList
- 30229
- Advantage
- 58
- Tel
- 18616526224
- lianshuo@vip.126.com
- Country
- China
- ProdList
- 9607
- Advantage
- 58
- Tel
- 13361936468
- 410756539@qq.com
- Country
- China
- ProdList
- 306
- Advantage
- 58
- Tel
- 15151934985
- sales@yingsapharm.com
- Country
- China
- ProdList
- 5181
- Advantage
- 58
- Tel
- +8618523575427
- sales@conier.com
- Country
- China
- ProdList
- 49975
- Advantage
- 58
- Tel
- +86-029-81138252 +86-173 9270 1263
- Fax
- 029-88380327
- 1057@dideu.com
- Country
- China
- ProdList
- 3999
- Advantage
- 58
- Tel
- +8613580539051
- joe@yuhengpharm.com
- Country
- CHINA
- ProdList
- 21142
- Advantage
- 58
- Tel
- 0519-68985668 13685222090
- Fax
- qq735434464
- sales@kechem.cn
- Country
- China
- ProdList
- 26028
- Advantage
- 58
- Tel
- 19951207836
- Fax
- QQ: 3097966864
- 3119034156@qq.com
- Country
- China
- ProdList
- 494
- Advantage
- 58
- Tel
- 021-58432009 400-005-6266
- Fax
- 021-58436166
- marketing@energy-chemical.com
- Country
- China
- ProdList
- 44918
- Advantage
- 58
- Tel
- 021-51816796-820 13611835272
- Fax
- 021-5161 3951
- sales2@sunwaypharm.com
- Country
- China
- ProdList
- 44119
- Advantage
- 58
- Tel
- 19821636928
- binlingzeng@163.com
- Country
- China
- ProdList
- 30
- Advantage
- 58
- Tel
- 400-8210725 4008210725
- malulu@leyan.com
- Country
- China
- ProdList
- 40000
- Advantage
- 58
- Tel
- 4000255188
- Fax
- 025 86918232
- sales_china@pharmablock.com
- Country
- China
- ProdList
- 10000
- Advantage
- 58
- Tel
- 400-6005915
- sales@picasso-e.com
- Country
- China
- ProdList
- 39665
- Advantage
- 58
- Tel
- 15811073878
- 2559355526@qq.com
- Country
- China
- ProdList
- 10701
- Advantage
- 58
- Tel
- 0573-85609002 18367600069;
- zhejia01@163.com
- Country
- China
- ProdList
- 8886
- Advantage
- 58
- Tel
- 15652467323
- sales@inno-chem.com.cn
- Country
- China
- ProdList
- 8293
- Advantage
- 58
- Tel
- 13210587493
- jinanluyuan@hotmail.com
- Country
- China
- ProdList
- 367
- Advantage
- 58
- Tel
- 15021035486 18081542813
- 1804873256@qq.com
- Country
- China
- ProdList
- 6684
- Advantage
- 58
- Tel
- 010-50973130 17801761073
- Gsiyu@solarbio.com
- Country
- China
- ProdList
- 50464
- Advantage
- 58
- Tel
- 021-57520305 13795461237
- zhuruyan@jskchem.com
- Country
- China
- ProdList
- 49234
- Advantage
- 58
- Tel
- 4000255188 13327728092
- sales@pharmablock.com
- Country
- China
- ProdList
- 10000
- Advantage
- 58
More
Less
View Lastest Price from 7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine manufacturers
Shaanxi Dideu Medichem Co. Ltd
- Product
- 7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine 34950-82-8
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 20T
- Release date
- 2024-08-08
34950-82-8, 7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazineRelated Search:
3-Bromo-5-ethoxypyridine
5-BROMO-3-METHOXYPYRIDIN-2-AMINE
3-Bromo-5-methylpyridine
7-BROMO-4-METHYL-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE
7-bromo-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one
7-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine
2-amino-5-bromopyridin-3-ol