6-Bromo-3,5-dichloropyrazin-2-amine CAS 1823367-31-2
| CAS No. | 1823367-31-2 |
| Molecular Formula | C4H2BrCl2N3 |
| Molecular Weight | 242.89 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Bromo-3,5-dichloropyrazin-2-amine (CAS 1823367-31-2), molecular formula C4H2BrCl2N3 and molecular weight 242.89 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C4H2BrCl2N3, 6-Bromo-3,5-dichloropyrazin-2-amine contains a nitrile group, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 242.89 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C4H2BrCl2N3 |
| Molecular Weight | 242.89 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
- 5-Bromo-2,6-dichloropyrimidin-4-amine (CAS 101012-11-7)
- 2-Bromo-3,5-dichloro-4-hydroxypyridine (CAS 1970-38-3)
- 4-Bromo-2,5-dichloropyridine 1-oxide (CAS 869886-84-0)
- 5-Bromo-3,6-dichloropyrazin-2-amine (CAS 960510-36-5)
- (2-Bromo-4-cyclopropylpyrimidin-5-yl)boronic acid (CAS 2225176-67-8)
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Recommended Standards
- 2-(Trimethylstannyl)pyrimidine (CAS 155191-64-3)
- 2-Amino-5-bromo-4,6-dichloropyrimidine (CAS 7781-26-2)
- 4-(2-Bromoacetyl)phenylboronic Acid (CAS 481725-47-7)
- (5-Bromo-2,3-dihydrobenzofuran-7-yl)boronic acid (CAS 690632-72-5)
- Methyl 6-cyanopyridazine-4-carboxylate (CAS 1815574-46-9)
- 2-Bromoquinazoline (CAS 1316275-31-6)
- 5,8-Dioxaspiro[3.4]octan-2-ylmethanamine (CAS 1392804-87-3)
- Ethyl 3-(N-(3,4-difluorophenyl)sulfamoyl)benzo[b]thiophene-2-carboxylate (CAS 932303-49-6)
- 1-Bromo-4-fluoro-5-nitro-2-(trifluoromethyl)benzene (CAS 1807119-31-8)
- 2-((4-Methylpiperazin-1-yl)methyl)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(1H)-one (CAS 20886-99-1)
- N,N-Dibutyl-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-6-sulfonamide (CAS 62522-64-9)
- 6-(4-Ethylphenyl)-2-methylpyrimidin-4-amine (CAS 1368679-02-0)
- 2-(Difluoromethyl)-5-methoxybenzo[d]oxazole (CAS 1806282-81-4)
- Tau Peptide (401-411)-Lys-Lys trifluoroacetate salt (CAS 2022956-59-6)
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