2,5-DIBROMO-3-AMINOPYRIDINE
- Product Name
- 2,5-DIBROMO-3-AMINOPYRIDINE
- CAS No.
- 90902-84-4
- Chemical Name
- 2,5-DIBROMO-3-AMINOPYRIDINE
- Synonyms
- 2,5-Dibromopyridin-3-amine;2,5-dibromo-3-pyridinamine;2,5-DIBROMO-3-AMINOPYRIDINE;3-Amino-2,5-dibromopyridi...;3-Pyridinamine, 2,5-dibromo-;2,5-DIBROMO-PYRIDIN-3-YLAMINE;3-Amino-2,5-dibromopyridine≥ 98% (HPLC);2,5-DIBROMO-3-AMINOPYRIDINE ISO 9001：2015 REACH
- CBNumber
- CB21076002
- Molecular Formula
- C5H4Br2N2
- Formula Weight
- 251.91
- MOL File
- 90902-84-4.mol
2,5-DIBROMO-3-AMINOPYRIDINE Property
- Melting point:
- 152.0 to 156.0 °C
- Boiling point:
- 325.0±37.0 °C(Predicted)
- Density
- 2.147±0.06 g/cm3(Predicted)
- storage temp.
- Keep in dark place,Sealed in dry,Room Temperature
- pka
- -0.56±0.10(Predicted)
- form
- powder to crystal
- color
- White to Brown
- InChI
- InChI=1S/C5H4Br2N2/c6-3-1-4(8)5(7)9-2-3/h1-2H,8H2
- InChIKey
- VHGBUYMPBFPXQM-UHFFFAOYSA-N
- SMILES
- C1(Br)=NC=C(Br)C=C1N
- CAS DataBase Reference
- 90902-84-4
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H301Toxic if swalloed
H318Causes serious eye damage
- Precautionary statements
-
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- ADE000414
- Product name
- 2,5-Dibromo-pyridin-3-ylamine
- Purity
- Aldrich
- Packaging
- 1g
- Price
- $747
- Updated
- 2025/07/31
- Product number
- A3048
- Product name
- 3-Amino-2,5-dibromopyridine
- Purity
- >98.0%(GC)
- Packaging
- 1g
- Price
- $61
- Updated
- 2025/07/31
- Product number
- A3048
- Product name
- 3-Amino-2,5-dibromopyridine
- Purity
- >98.0%(GC)
- Packaging
- 5g
- Price
- $184
- Updated
- 2025/07/31
- Product number
- B426193
- Product name
- 2,5-Dibromopyridin-3-amine
- Packaging
- 10mg
- Price
- $45
- Updated
- 2021/12/16
- Product number
- CS-0052143
- Product name
- 2,5-Dibromopyridin-3-amine
- Purity
- 99.34%
- Packaging
- 5g
- Price
- $57
- Updated
- 2021/12/16
2,5-DIBROMO-3-AMINOPYRIDINE Chemical Properties,Usage,Production
Chemical Properties
Brown solid
Uses
3-Amino-2,5-dibromopyridine is used as a pharmaceutical synthesis intermediate.
Synthesis
15862-37-0
90902-84-4
(b) Synthesis of 2,5-dibromo-3-aminopyridine: 2,5-dibromo-3-nitropyridine (2.5 g, 8.87 mmol) was dissolved in acetic acid (10 mL) and stirred until completely dissolved. Powdered iron (2.476 g, 44.3 mmol) was then added and the reaction mixture was heated to 80 °C under vigorous stirring and maintained for 15 min. Upon completion of the reaction, the mixture was filtered through a diatomaceous earth pad to remove solid impurities and the filter cake was washed with ether and ethyl acetate (EtOAc). The organic layers were combined and washed sequentially with water and saturated brine to remove water-soluble impurities. The organic layers were dried over anhydrous magnesium sulfate, filtered and concentrated to give the crude product. The crude product was purified by silica gel column chromatography using 0-30% ethyl acetate/hexane gradient elution to collect the target components, and concentrated under reduced pressure to give 2,5-dibromopyridin-3-amine (1.7 g, 6.75 mmol, 76% yield) as a white solid. The mass spectrum (electrospray positive ion mode) showed m/z 252 ([M+H]+).
References
[1] Bulletin des Societes Chimiques Belges, 1988, vol. 97, # 1, p. 51 - 54
[2] Patent: WO2008/128961, 2008, A1. Location in patent: Page/Page column 37; 73
[3] Journal of Medicinal Chemistry, 2010, vol. 53, # 10, p. 3927 - 3936
[4] Patent: WO2007/107758, 2007, A1. Location in patent: Page/Page column 125
[5] Journal of the Chemical Society, 1952, p. 2042,2044
2,5-DIBROMO-3-AMINOPYRIDINE Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 2,5-DIBROMO-3-AMINOPYRIDINE manufacturers
- Product
- 2,5-Dibromo-pyridin-3-ylamine 90902-84-4
- Price
- US $1.00/Kg
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- 20T
- Release date
- 2019-12-26
- Product
- 2,5-Dibromo-pyridin-3-ylamine 90902-84-4
- Price
- US $0.00-0.00/Kg
- Min. Order
- 1KG
- Purity
- 99.0%
- Supply Ability
- 500 MT
- Release date
- 2020-05-12
- Product
- 2,5-DIBROMO-3-AMINOPYRIDINE 90902-84-4
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 200kgs
- Release date
- 2020-02-18