3-BROMO-2,5-DICHLOROPYRIDINE
- Product Name
- 3-BROMO-2,5-DICHLOROPYRIDINE
- CAS No.
- 138006-41-4
- Chemical Name
- 3-BROMO-2,5-DICHLOROPYRIDINE
- Synonyms
- 3-Bromo-2,5-dichL;3-Bromo-6-iodopyridine;5-Brom-2,3-dichlorpyridin;3-BROMO-2,5-DICHLOROPYRIDINE;2,5 DICHLORO-3-BROMO-PYRIDINE;Pyridine,3-broMo-2,5-dichloro-;2-Chloro-3-Bromo-5-Chloropyridine;3-BROMO-2,5-DICHLOROPYRIDINE ISO 9001:2015 REACH
- CBNumber
- CB2377445
- Molecular Formula
- C5H2BrCl2N
- Formula Weight
- 226.89
- MOL File
- 138006-41-4.mol
3-BROMO-2,5-DICHLOROPYRIDINE Property
- Melting point:
- 38-40°C
- Boiling point:
- 195-198C
- Density
- 1,199g/cm
- refractive index
- 1,424-1,426
- storage temp.
- under inert gas (nitrogen or Argon) at 2-8°C
- solubility
- soluble in Methanol
- form
- powder to crystal
- pka
- -3.02±0.10(Predicted)
- color
- Light orange to Yellow to Green
- CAS DataBase Reference
- 138006-41-4(CAS DataBase Reference)
Safety
- Hazard Codes
- Xi,T
- Risk Statements
- 36/37/38-41-37/38-25
- Safety Statements
- 26-45-39
- RIDADR
- UN2811
- Hazard Note
- Irritant
- HazardClass
- 6.1
- PackingGroup
- III
- HS Code
- 2933399990
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H331Toxic if inhaled
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
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.
N-Bromosuccinimide Price
- Product number
- B4832
- Product name
- 3-Bromo-2,5-dichloropyridine
- Purity
- >98.0%(GC)
- Packaging
- 1g
- Price
- $104
- Updated
- 2025/07/31
- Product number
- B4832
- Product name
- 3-Bromo-2,5-dichloropyridine
- Purity
- >98.0%(GC)
- Packaging
- 5g
- Price
- $370
- Updated
- 2025/07/31
- Product number
- B691178
- Product name
- 3-Bromo-2,5-dichloropyridine
- Packaging
- 500mg
- Price
- $65
- Updated
- 2021/12/16
- Product number
- B691178
- Product name
- 3-Bromo-2,5-dichloropyridine
- Packaging
- 250mg
- Price
- $55
- Updated
- 2021/12/16
- Product number
- FB55603
- Product name
- 3-Bromo-2,5-dichloropyridine
- Packaging
- 2g
- Price
- $60
- Updated
- 2021/12/16
3-BROMO-2,5-DICHLOROPYRIDINE Chemical Properties,Usage,Production
Synthesis
137628-16-1
138006-41-4
Example 3 Synthesis of 3-bromo-2,5-dichloropyridine: To a solution of 3-bromo-5-chloropyridin-2-one (84.3 g, 0.404 mol) in N,N-dimethylformamide (DMF, 100 mL) was slowly added phosphorus oxychloride (POCl3, 56.5 mL, 0.61 mol) through a dropping funnel at room temperature, and the process of dropping was continued for 3 hours. Subsequently, the resulting black solution was heated to 70 °C and the reaction was stirred at this temperature for 3 days. Upon completion of the reaction, the mixture was cooled to room temperature and carefully poured into 1 L of ice water. The precipitated solid was collected by filtration and dried in a vacuum oven to afford 81.76 g (89% yield) of the target product 3-bromo-2,5-dichloropyridine as a white solid with a melting point of 39-41 °C. The product was confirmed by infrared spectroscopy (IR, CHCl3), and the main absorption peaks were located at 3867, 3663, 2989, 2734, 1812, 1606, 1547, 1400, 1366, 1230, 1155, 1129, 1074, 1027, 894, 658, and 563 cm-1. Nuclear magnetic resonance hydrogen spectroscopy (1H NMR, 300 MHz, CDCl3) showed signals at δ 8.0 (d, 1H, J = 2.2 Hz) and 8.35 (d, 1H, J = 2.2 Hz). Nuclear magnetic resonance carbon spectra (13C NMR, CDCl3) showed signals at δ 120.43, 130.74, 141.46, 146.64, and 148.99. The high resolution mass spectrum measured the molecular weight of 224.8764, which is consistent with the calculated value of C5H2NBrCl2 (224.8748).
References
[1] Patent: US5068333, 1991, A
3-BROMO-2,5-DICHLOROPYRIDINE Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 3-BROMO-2,5-DICHLOROPYRIDINE manufacturers
- Product
- 3-Bromo-2,5-dichloropyridine 138006-41-4
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 98%min
- Supply Ability
- 30tons/month
- Release date
- 2023-02-08
- Product
- 5-Brom-2,3-dichlorpyridin 138006-41-4
- Price
- US $200.00-1.00/KG
- Min. Order
- 1KG
- Purity
- 99%, 99.5% Sublimated
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2023-12-30
- Product
- 3-BROMO-2,5-DICHLOROPYRIDINE 138006-41-4
- Price
- US $1.10/g
- Min. Order
- 1g
- Purity
- 99.00%
- Supply Ability
- 100 Tons min
- Release date
- 2021-08-18