2,5-Dibromopyridine
- Product Name
- 2,5-Dibromopyridine
- CAS No.
- 624-28-2
- Chemical Name
- 2,5-Dibromopyridine
- Synonyms
- Dibromopyridine;NSC 76597;5-DibroMopyridine;2,5-Dibrompyridin;2,5-dibromopyridin;2,5 dibromopyrdine;2,5-DIBROMOPYRIDINE;3,6-DibroMopyridine;2,5 Di bromo pyridne;Perampanel Impurity 9
- CBNumber
- CB7283491
- Molecular Formula
- C5H3Br2N
- Formula Weight
- 236.89
- MOL File
- 624-28-2.mol
2,5-Dibromopyridine Property
- Melting point:
- 92-95 °C (lit.)
- Boiling point:
- 235 °C / 772mmHg
- Density
- 2.0383 (rough estimate)
- refractive index
- 1.5800 (estimate)
- Flash point:
- 62℃
- storage temp.
- Inert atmosphere,Room Temperature
- solubility
- Chloroform (Slightly), Methanol (Slightly)
- pka
- -1.57±0.10(Predicted)
- form
- Crystalline Powder
- color
- Almost white or light beige to brown
- Water Solubility
- insoluble
- BRN
- 109099
- InChI
- InChI=1S/C5H3Br2N/c6-4-1-2-5(7)8-3-4/h1-3H
- InChIKey
- ZHXUWDPHUQHFOV-UHFFFAOYSA-N
- SMILES
- C1(Br)=NC=C(Br)C=C1
- CAS DataBase Reference
- 624-28-2(CAS DataBase Reference)
Safety
- Hazard Codes
- Xi,Xn
- Risk Statements
- 36/37/38-20/21/22
- Safety Statements
- 26-37/39-36/37/39-36
- RIDADR
- UN2811
- WGK Germany
- 3
- HazardClass
- IRRITANT
- HS Code
- 29333999
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
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405Store locked up.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- D43107
- Product name
- 2,5-Dibromopyridine
- Purity
- 98%
- Packaging
- 10g
- Price
- $96.9
- Updated
- 2024/03/01
- Product number
- D1217
- Product name
- 2,5-Dibromopyridine
- Purity
- >99.0%(GC)
- Packaging
- 5g
- Price
- $24
- Updated
- 2024/03/01
- Product number
- D1217
- Product name
- 2,5-Dibromopyridine
- Purity
- >99.0%(GC)
- Packaging
- 25g
- Price
- $66
- Updated
- 2024/03/01
- Product number
- A10937
- Product name
- 2,5-Dibromopyridine, 97%
- Packaging
- 10g
- Price
- $70.65
- Updated
- 2024/03/01
- Product number
- A10937
- Product name
- 2,5-Dibromopyridine, 97%
- Packaging
- 50g
- Price
- $257.65
- Updated
- 2024/03/01
2,5-Dibromopyridine Chemical Properties,Usage,Production
Chemical Properties
2,5-Dibromopyridine is an off-white crystalline solid. It is insoluble in water but soluble in strong polar organic solvents. It exhibits strong alkalinity.
Uses
2,5-Dibromopyridine (cas# 624-28-2) is a compound useful in organic synthesis.
Preparation
To synthesize 2,5-dibromopyridine, follow these steps:
Add 2-amino-5-bromopyridine (13.0 kg) into a water-cooled solution at 10 °C.
Slowly add 47% aqueous hydrogen bromide (37 L) to the mixture.
Introduce liquid bromine (11 L) into the mixture.
Maintain the reaction temperature below 10 °C.
Prepare a solution of NaNO2 (16.1 kg) and H2O (19 L) and add it dropwise to the mixture while keeping the temperature between 0-5 °C.
Stir the reaction mixture for 30 minutes.
Treat the mixture with a solution of NaOH (28.0 kg) in water (30 L) at a controlled rate below 20-25 °C.
Extract the reaction mixture with diethyl ether (3 × 40 L).
Dry the organic layer with anhydrous Na2SO4.
Remove the desiccant by filtration.
Evaporate the resulting filtrate under reduced pressure to dryness.
Suspend the residue in heptane (10 L).
Collect the target product molecule, 2,5-dibromopyridine, by filtration.
Synthesis method of 2,5-dibromopyridine
2,5-Dibromopyridine Preparation Products And Raw materials
Raw materials
Preparation Products
2,5-Dibromopyridine Suppliers
- Tel
- 15580017485
- 2036676503@qq.com
- Country
- China
- ProdList
- 88
- Advantage
- 58
- Tel
- 021-54306202 13764082696;
- info@hanhongsci.com
- Country
- China
- ProdList
- 42982
- Advantage
- 64
- Tel
- 025-52614296 17761738099
- Fax
- 025-52614296
- cychemical@126.com
- Country
- China
- ProdList
- 53
- Advantage
- 55
- Tel
- 021-021-50630626 18964684208
- Fax
- 021-50563898
- kate@tajilin.com
- Country
- China
- ProdList
- 1212
- Advantage
- 58
- Tel
- 13606112397
- tang13606112397@163.com
- Country
- China
- ProdList
- 216
- Advantage
- 58
- Tel
- 021-52530655 18930806002
- yuli@semsstar.com
- Country
- China
- ProdList
- 134
- Advantage
- 58
- Tel
- 0513-82104991 18912868322
- Fax
- QQ1907456386
- sales10@btcpharm.com
- Country
- China
- ProdList
- 1361
- Advantage
- 58
- Tel
- 15250805028
- Fax
- QQ:1048979734
- 1048979734@qq.com
- Country
- China
- ProdList
- 261
- Advantage
- 58
- Tel
- 010-82848833 400-666-7788
- Fax
- 86-10-82849933
- jkinfo@jkchemical.com
- Country
- China
- ProdList
- 96815
- Advantage
- 76
- Tel
- 4006608290; 18621169109
- Fax
- 86-21-61259102
- market03@meryer.com
- Country
- China
- ProdList
- 40241
- Advantage
- 62
- Tel
- 0418-6530555 2855550
- Fax
- +86-418-6502885
- Country
- China
- ProdList
- 338
- Advantage
- 69
- Tel
- 400-0066400 13621662912
- Fax
- 021-55660885
- sales@jonln.com
- Country
- China
- ProdList
- 1998
- Advantage
- 65
- Tel
- 5108538618
- Fax
- 86 510 85386988-8017
- suger.wang@chemfuture.com
- Country
- China
- ProdList
- 822
- Advantage
- 65
- Tel
- 400-6106006
- Fax
- 021-67582001/03/05
- saleschina@alfa-asia.com
- Country
- China
- ProdList
- 30132
- Advantage
- 84
- Tel
- +86 351 7031519
- Fax
- +86 351 7031519
- sales@RHFChem.com
- Country
- China
- ProdList
- 2341
- Advantage
- 56
- Tel
- 021-67121386
- Fax
- 021-67121385
- Sales-CN@TCIchemicals.com
- Country
- China
- ProdList
- 24539
- Advantage
- 81
- Tel
- 13913622609
- Fax
- 86-512-52893680
- sales@haitianchem.cn
- Country
- China
- ProdList
- 223
- Advantage
- 61
- Tel
- 021-021-58432009 400-005-6266
- Fax
- 021-58436166
- sales8178@energy-chemical.com
- Country
- China
- ProdList
- 44751
- Advantage
- 61
- Tel
- 0311-89250318 031166536426
- Fax
- 4000311741
- master@sjzsdyn.com
- Country
- China
- ProdList
- 2882
- Advantage
- 65
- Tel
- 86-027-67849912
- Fax
- 86-027-87531808
- sales@chemwish.com
- Country
- China
- ProdList
- 35906
- Advantage
- 56
- Tel
- +86 (0) 571 85 58 67 18
- Fax
- 0086-571-85864795
- sales@capotchem.com
- Country
- China
- ProdList
- 18217
- Advantage
- 66
- Tel
- 010-82967028 13552068683
- Fax
- +86-10-82967029
- 2355560935@qq.com
- Country
- China
- ProdList
- 12458
- Advantage
- 60
- Tel
- 13817811078
- Fax
- 86-021-50426522,50426273
- sales@jingyan-chemical.com
- Country
- China
- ProdList
- 9984
- Advantage
- 60
- Tel
- +86-21-54098501
- Fax
- +86-21-54096319
- sales@sinch.com.cn
- Country
- China
- ProdList
- 11605
- Advantage
- 64
- Tel
- 025-85760892 13376090521
- Fax
- 025-85766769
- sales@habotech.com
- Country
- China
- ProdList
- 999
- Advantage
- 60
- Tel
- 021-50795510 4000665055
- Fax
- 021-50795055
- sales@accelachem.com
- Country
- China
- ProdList
- 11660
- Advantage
- 64
- Tel
- 021-58099652-8005 13585536065
- Fax
- 021-58099609
- bin.wu@shlschem.com
- Country
- China
- ProdList
- 9816
- Advantage
- 59
- Tel
- 025-83697070
- Fax
- +86-25-83453306
- info@chemlin.com.cn
- Country
- China
- ProdList
- 17987
- Advantage
- 64
- Tel
- 021-50135380
- shchemsky@sina.com
- Country
- China
- ProdList
- 32344
- Advantage
- 50
- Tel
- 86-0571-85151182
- Fax
- 86-0571-85151182
- Country
- China
- ProdList
- 5700
- Advantage
- 66
- Tel
- 0712-0712-2580635 15527768850
- 1791901229@qq.com
- Country
- China
- ProdList
- 8849
- Advantage
- 52
- Tel
- 13355009207 13355009207
- Fax
- 0539-6365991
- 3007715519@qq.com
- Country
- China
- ProdList
- 18739
- Advantage
- 57
- Tel
- 400-1166-196 18981987031
- Fax
- 028-84555506 800101999
- cdhxsj@163.com
- Country
- China
- ProdList
- 11726
- Advantage
- 57
- Tel
- +86(24) 31938773(O)
- Fax
- qq:174941352
- sales@co-chem.com
- Country
- China
- ProdList
- 225
- Advantage
- 62
- Tel
- 400-188-0725 +86 21 34310725 13611771617
- Fax
- +86 21 34311076
- Country
- China
- ProdList
- 2002
- Advantage
- 57
- Tel
- 400 638 7771
- sales@heowns.com
- Country
- China
- ProdList
- 14443
- Advantage
- 57
- Tel
- 86-21-63210123
- Fax
- 86-21-63290778 86-21-63218885
- sj_scrc@sinopharm.com
- Country
- China
- ProdList
- 9823
- Advantage
- 79
- Tel
- +8618575662672 18575662672
- Fax
- 021 51613951
- mzeng@3wpharm.com
- Country
- China
- ProdList
- 9747
- Advantage
- 57
- Tel
- Please Send Email 18652950785
- Fax
- 025-87193546
- chemweiao@163.com
- Country
- China
- ProdList
- 4388
- Advantage
- 65
- Tel
- 0086-755-86198205
- acinfo@aemonchem.com
- Country
- China
- ProdList
- 1937
- Advantage
- 57
- Tel
- +86 (573) 82222445 (0)18006601000 452520369
- Fax
- +86 (573) 82222643
- sales@maya-r.com
- Country
- China
- ProdList
- 11714
- Advantage
- 57
- Tel
- 0519-85607885 13776800733
- Fax
- +86 519 8552788
- email@standardschem.com
- Country
- China
- ProdList
- 114
- Advantage
- 62
- Tel
- 0512-63263366 18912765016
- Fax
- 0512-6326 3366
- tongtf110@sina.com
- Country
- China
- ProdList
- 997
- Advantage
- 62
- Tel
- 0370-2785118 15343847665
- Fax
- QQ:3470079902
- huawenchem@163.com
- Country
- China
- ProdList
- 3206
- Advantage
- 55
- Tel
- 21-21-56491756 13512199871
- Fax
- 021-5649-1756
- sales@panhongchem.com
- Country
- China
- ProdList
- 4001
- Advantage
- 55
- Tel
- 86-531-88280989
- Fax
- 86-531-88280989
- mymail1996@126.com
- Country
- China
- ProdList
- 258
- Advantage
- 55
- Tel
- 021-61551611 13296011611
- Fax
- +86 21-50676805
- contact@trustwe.com
- Country
- China
- ProdList
- 9900
- Advantage
- 58
- Tel
- 86-21-34053660
- Fax
- 86-21-34053661
- sale@labgogo.com
- Country
- China
- ProdList
- 9872
- Advantage
- 52
- Tel
- 010-56645598 13366904824
- Fax
- 01062230033
- bjkaida@163.com
- Country
- China
- ProdList
- 1666
- Advantage
- 59
- Tel
- 027-86697669 13986148687
- Fax
- 86-027-86697669
- sales@tcaschem.com
- Country
- China
- ProdList
- 4089
- Advantage
- 55
View Lastest Price from 2,5-Dibromopyridine manufacturers
- Product
- 2,5-Dibromopyridine 624-28-2
- Price
- US $5.00-0.10/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2024-04-09
- Product
- 2,5-Dibromopyridine 624-28-2
- Price
- US $136.00/kg
- Min. Order
- 1kg
- Purity
- 0.99
- Supply Ability
- 100kg
- Release date
- 2023-11-17
- Product
- 2,5-Dibromopyridine 624-28-2
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 50000KG/month
- Release date
- 2023-09-12