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ChemicalBook >> CAS DataBase List >>2,5-Dibromo-3-aminopyridine

2,5-Dibromo-3-aminopyridine

2,5-Dibromo-3-aminopyridine Structure
2,5-Dibromo-3-aminopyridine structure
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
Molecular Weight:
251.91
MDL Number:
MFCD09266224
MOL File:
90902-84-4.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:50:09
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2,5-Dibromo-3-aminopyridine Properties

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
UNSPSC Code 12352116

SAFETY

Risk and Safety Statements

Symbol(GHS)  Corrosion (GHS05)Skull and Crossbones (GHS06)
GHS05,GHS06
Signal word  Danger
Hazard statements  H301-H318
Precautionary statements  P280-P301+P310-P305+P351+P338
Hazard Codes  Xi,T
Risk Statements  25-41
Safety Statements  26-39-45
RIDADR  UN 2811 6.1 / PGIII
WGK Germany  3
HazardClass  IRRITANT
HS Code  2933399990
Storage Class 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
Hazard Classifications Acute Tox. 3 Oral
Eye Dam. 1
NFPA 704
0
2 0

2,5-Dibromo-3-aminopyridine price More Price(68)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich ADE000414 2,5-Dibromo-pyridin-3-ylamine Aldrich 90902-84-4 1g $795 2026-04-30 Buy
TCI Chemical A3048 3-Amino-2,5-dibromopyridine >98.0%(GC) 90902-84-4 1g $65 2026-04-30 Buy
TCI Chemical A3048 3-Amino-2,5-dibromopyridine >98.0%(GC) 90902-84-4 5g $195 2026-04-30 Buy
Usbiological 231555 3-Amino-2,5-dibromopyridine 98+% (HPLC) ≥98%(HPLC) 90902-84-4 1g $219 2026-06-03 Buy
Usbiological 231555 3-Amino-2,5-dibromopyridine 98+% (HPLC) ≥98%(HPLC) 90902-84-4 5g $446 2026-06-03 Buy
Product number Packaging Price Buy
ADE000414 1g $795 Buy
A3048 1g $65 Buy
A3048 5g $195 Buy
231555 1g $219 Buy
231555 5g $446 Buy

2,5-Dibromo-3-aminopyridine Chemical Properties, Uses, Production

Chemical Properties

Brown solid

Uses

3-Amino-2,5-dibromopyridine is used as a pharmaceutical synthesis intermediate.

Synthesis

2,5-Dibromo-3-nitropyridine

15862-37-0

2,5-DIBROMO-3-AMINOPYRIDINE

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

2,5-Dibromo-3-nitropyridine

Preparation Products

2,5-Dibromo-3-aminopyridine Suppliers

Global Suppliers ( 117)
Supplier Tel Email Country ProdList Advantage
Changzhou Helios Biomedical Science and Technology Co.,LTD. 18961213068 121257724@qq.com China 493 58
Hangzhou Copiore Chemical Co., Ltd. 17300981287 13757145729 sales@copiore.com China 291 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
ChangShu Haitian Fine Chemicals Co.,Ltd 13913622609 974295387@qq.com China 192 61
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Wuhan Chemwish Technology Co., Ltd 86-027-67849912 sales@chemwish.com China 35884 56
Capot Chemical Co., Ltd +86 (0) 571 85 58 67 18 China 18187 66
Adamas Reagent, Ltd. 400-6009262 15618770481 yhx@titansci.com China 14098 59
Nan Jing Dirise Chemcial Co.,LTD 025-52161033 15312098939 2432674894@qq.com China 585 64
Wuhan Luohua Medical Technology Co.,Ltd. 13477084141; 13477084141 sales@luohuapharm.com China 468 60
Supplier Advantage
Changzhou Helios Biomedical Science and Technology Co.,LTD. 58
Hangzhou Copiore Chemical Co., Ltd. 58
J & K SCIENTIFIC LTD. 76
ChangShu Haitian Fine Chemicals Co.,Ltd 61
Energy Chemical 61
Wuhan Chemwish Technology Co., Ltd 56
Capot Chemical Co., Ltd 66
Adamas Reagent, Ltd. 59
Nan Jing Dirise Chemcial Co.,LTD 64
Wuhan Luohua Medical Technology Co.,Ltd. 60

View Latest Price from 2,5-Dibromo-3-aminopyridine manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2,5-Dibromo-pyridin-3-ylamine pictures 2020-05-13 2,5-Dibromo-pyridin-3-ylamine
90902-84-4
 1KG 99.0% 500 MT Shaanxi Dideu Medichem Co. Ltd
2,5-DIBROMO-3-AMINOPYRIDINE pictures 2020-02-19 2,5-DIBROMO-3-AMINOPYRIDINE
90902-84-4
 $1.00 1KG 99% 200kgs Career Henan Chemical Co
2,5-Dibromo-pyridin-3-ylamine pictures 2019-12-27 2,5-Dibromo-pyridin-3-ylamine
90902-84-4
 $1.00 1KG 98% 20T Shaanxi Dideu Medichem Co. Ltd

2,5-Dibromo-3-aminopyridine Spectrum

2,5-DIBROMO-3-AMINOPYRIDINE(90902-84-4)1HNMR

90902-84-4 (2,5-Dibromo-3-aminopyridine) Related Search:

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2,5-DIBROMO-PYRIDIN-3-YLAMINE 2,5-dibromo-3-pyridinamine 3-Amino-2,5-dibromopyridi... 3-Amino-2,5-dibromopyridine≥ 98% (HPLC) 3-Pyridinamine, 2,5-dibromo- 2,5-DIBROMO-3-AMINOPYRIDINE ISO 9001：2015 REACH 2,5-Dibromopyridin-3-amine 2,5-Dibromo-3-aminopyridine 90902-84-4 Pyridine