5-BROMO-3-METHOXYPYRAZIN-2-YLAMINE
- CAS No.
- 5900-13-0
- Chemical Name:
- 5-BROMO-3-METHOXYPYRAZIN-2-YLAMINE
- Synonyms
- 5-BROMO-3-METHOXYPYR;5-BroMo-3-MethoxypyrazinaMine;2-Amino-5-Bromo-3-methoxypyra;5-bromo-3-methoxypyrazin-2-amine;2-Amino-5-Bromo-3-methoxypyrazin;5-Bromo-3-methoxy-2-pyrazinamine;3-Methoxy-5-bromopyrazin-2-amine;2-AMINO-5-BROMO-3-METHOXYPYRAZINE;2-Amino-3-methoxy-5-bromopyrazine;2-PyrazinaMine, 5-broMo-3-Methoxy-
- CBNumber:
- CB6145518
- Molecular Formula:
- C5H6BrN3O
- Molecular Weight:
- 204.02
- MDL Number:
- MFCD08275726
- MOL File:
- 5900-13-0.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| 2-Amino-5-bromo-3-methoxypyrazine 95% | 732125 | 500mg | $73.2 |
| 2-Amino-5-bromo-3-methoxypyrazine >99.0%(GC)(T) | A2562 | 1g | $48 |
| 5-Bromo-3-methoxy-2-pyrazinamine | B684815 | 5g | $180 |
| 5-Bromo-3-methoxypyrazin-2-amine | FB54437 | 1g | $181.5 |
| 5-Bromo-3-methoxypyrazin-2-amine | FB54437 | 500mg | $90 |
| More product size | |||
| Melting point | 135-140 °C |
|---|---|
| Boiling point | 262 ºC |
| Density | 1.723 |
| refractive index | 1. |
| Flash point | 112 ºC |
| storage temp. | 2-8°C |
| solubility | DMSO, Methanol |
| form | Solid |
| pka | 1.93±0.10(Predicted) |
| color | Off-White |
| InChIKey | QDFJJHGAODFQMN-UHFFFAOYSA-N |
| CAS DataBase Reference | 5900-13-0(CAS DataBase Reference) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() ![]() GHS05,GHS07 |
|---|---|
| Signal word | Danger |
| Hazard statements | H302-H315-H318-H335 |
| Precautionary statements | P280-P301+P312+P330-P302+P352-P305+P351+P338+P310 |
| Hazard Codes | Xn |
| Risk Statements | 22-37/38-41 |
| Safety Statements | 26-39 |
| WGK Germany | 3 |
| HS Code | 2933998090 |
5-BROMO-3-METHOXYPYRAZIN-2-YLAMINE price More Price(31)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 732125 | 2-Amino-5-bromo-3-methoxypyrazine 95% | 5900-13-0 | 500mg | $73.2 | 2023-01-07 | Buy |
| TCI Chemical | A2562 | 2-Amino-5-bromo-3-methoxypyrazine >99.0%(GC)(T) | 5900-13-0 | 1g | $48 | 2025-07-31 | Buy |
| TRC | B684815 | 5-Bromo-3-methoxy-2-pyrazinamine | 5900-13-0 | 5g | $180 | 2021-12-16 | Buy |
| Biosynth Carbosynth | FB54437 | 5-Bromo-3-methoxypyrazin-2-amine | 5900-13-0 | 1g | $181.5 | 2021-12-16 | Buy |
| Biosynth Carbosynth | FB54437 | 5-Bromo-3-methoxypyrazin-2-amine | 5900-13-0 | 500mg | $90 | 2021-12-16 | Buy |
5-BROMO-3-METHOXYPYRAZIN-2-YLAMINE Chemical Properties,Uses,Production
Chemical Properties
Off-White Solid
Uses
5-Bromo-3-methoxy-2-pyrazinamine is an intermediate in the preparation of N-pyrazinylbenzenesulfonamides used in treatment of chemokine mediated diseases such as asthma.
Synthesis
124-41-4
24241-18-7
5900-13-0
1. A 30% w/w methanolic solution of sodium methanolate (8.4 mL, 44.8 mmol) was slowly added to a stirring suspension of 3,5-dibromo-2-aminopyrazine (10 g, 39.5 mmol) in anhydrous methanol (40 mL). 2. The reaction mixture was heated to reflux and the reaction was maintained for 3 h. 3. Upon completion of the reaction, the reaction was cooled to room temperature and concentrated to 1/3 of the original volume by rotary evaporation. 4. The concentrated reaction mixture was partitioned between dichloromethane (DCM) and saturated aqueous sodium bicarbonate (NaHCO3).5 The organic and aqueous layers were separated and the organic phase was washed three times with saturated aqueous NaHCO3.6 The aqueous phases were combined and back-extracted three times with DCM.7 All the organic phases were combined, washed with saturated saline, dried with anhydrous sodium sulfate, filtered, and concentrated to give 5 mL of the reaction mixture.8 The reaction mixture was then dried. dried, filtered and concentrated to give 5-bromo-3-methoxypyrazin-2-amine (8.1 g). The product was characterized by 1H NMR (300 MHz, CDCl3): δ 7.64 (s, 1H), 4.79 (br s, 2H), 4.01 (s, 3H).
References
[1] ACS Medicinal Chemistry Letters, 2017, vol. 8, # 9, p. 981 - 986
[2] Bioorganic and Medicinal Chemistry, 2001, vol. 9, # 5, p. 1149 - 1154
[3] Patent: US2013/210818, 2013, A1. Location in patent: Paragraph 0384
[4] Patent: WO2014/68171, 2014, A1. Location in patent: Page/Page column 27
[5] Patent: WO2009/115572, 2009, A2. Location in patent: Page/Page column 116
5-BROMO-3-METHOXYPYRAZIN-2-YLAMINE Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | +86-13017695106 +86-13676922317 | jiuyitime@fdachem.com | China | 16514 | 58 |
| Capot Chemical Co.,Ltd. | +86-(0)57185586718; +8613336195806 | sales@capot.com | China | 29735 | 60 |
| Shanghai Arbor Chemical Co., Ltd. | 021-60451682 | act@arborchemical.com | CHINA | 904 | 58 |
| Changzhou Ansciep Chemical Co., Ltd. | +86 519 86305871 | sales@ansciepchem.com | CHINA | 4241 | 58 |
| Nanjing Dolon Biotechnology Co.,Ltd. | 18905173768 | 52513593@qq.com | CHINA | 2972 | 58 |
| Accela ChemBio Inc. | +1-858-6993322 | info@accelachem.com | United States | 21193 | 58 |
| Hubei xin bonus chemical co. LTD | 86-13657291602 | linda@hubeijusheng.com | CHINA | 22963 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49975 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | factory@coreychem.com | China | 29798 | 58 |
View Lastest Price from 5-BROMO-3-METHOXYPYRAZIN-2-YLAMINE manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2025-11-18 | 5-BROMO-3-METHOXYPYRAZIN-2-YLAMINE
5900-13-0
|
US $1.10 / g | 1g | 99.00% | 100 Tons | Dideu Industries Group Limited | |
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2025-10-13 | 5-Bromo-3-methoxypyrazin-2-amine
5900-13-0
|
US $2.20-8.80 / kg | 1kg | 99%min | 1000kg | ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | |
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2020-04-30 | 2-Amino-5-bromo-3-methoxypyrazine
5900-13-0
|
US $0.00-0.00 / Kg | 1KG | 99.0%+ | 800 tons | Shaanxi Dideu Medichem Co. Ltd |
-

- 5-BROMO-3-METHOXYPYRAZIN-2-YLAMINE
5900-13-0
- US $1.10 / g
- 99.00%
- Dideu Industries Group Limited
-

- 5-Bromo-3-methoxypyrazin-2-amine
5900-13-0
- US $2.20-8.80 / kg
- 99%min
- ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
-

- 2-Amino-5-bromo-3-methoxypyrazine
5900-13-0
- US $0.00-0.00 / Kg
- 99.0%+
- Shaanxi Dideu Medichem Co. Ltd






