CAS 23229-26-7 | 2,5-Dibromopyrazine
Name: 2,5-Dibromapyrazine
CAS number: 23229-26-7
Molecular formula: C4H2Br2N2
Molecular weight: 237.88
EINECS number: 805-812-6
MDL No.：MFCD08061601
Specification:
| Properties | White solids (low melting point) |
| Purity (HPLC) | ≥99.00% |
| Maximum single impurity (HPLC) | ≤0.50% |
| Total impurities (HPLC) | ≤1.00% |
| Purity (GC) | ≥99.00% |
| Maximum single impurity (GC) | ≤0.50% |
| Total impurities (GC) | ≤1.00% |
| ID (¹H NMR) | H-NMR is consistent with proposed structure |
| Melting Point | 47.00℃-50.00℃ |
| Water Content | ≤0.50% |
| Residual Solvents | N-heptane ≤0.50% |
| Residue on Ignition | ≤0.50% |
| Assay | 98.00%-102.00% on the dried basis |
Application:
1. Pharmaceutical Intermediate
A building block for synthesizingpyrazine-containing pharmaceuticalsand bioactive molecules. The reactive bromine atoms enable efficient coupling reactions to construct complex drug scaffolds.
2. Organic Synthesis
Versatile aryl halide forSuzuki–Miyaura,Ullmann, and other cross-coupling reactions. Serves as a key intermediate for functionalized pyrazines, aromatic heterocycles, and conjugated materials.
3. Agrochemicals
Used in developingpesticides, fungicides, and herbicideswith pyrazine moieties, leveraging the heterocycle's biological activity.
4. Material Science
Precursor fororganic semiconductors, conjugated polymers, and functional dyes, where the pyrazine ring enhances electron transport and stability.
Downstream Products
1. Substituted Pyrazines
2,5-Diiodopyrazine, 2,5-Diaminopyrazine, 2,5-Diarylpyrazines.
2. Agrochemical Products
Insecticides and fungicides targeting crop protection.
3. Organic Electronic Materials
OLED emitters, organic field-effect transistors (OFETs), and photoelectric materials.
Synonyms:
5-Dibromopyrazine
2,5-Dibromopyrazine
2,5-bisbromopyrazine
Pyrazine, 2,5-dibromo-
3,6-Dibromopyrazine,
2,5-Dibromo-1,4-diazine
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