7-Bromo-2,3-dichloropyrido[3,4-b]pyrazine CAS 1558735-50-4
| CAS No. | 1558735-50-4 |
| Molecular Formula | C7H2BrCl2N3 |
| Molecular Weight | 278.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 278.92 g/mol gives 7-Bromo-2,3-dichloropyrido[3,4-b]pyrazine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 7-Bromo-2,3-dichloropyrido[3,4-b]pyrazine (CAS 1558735-50-4), a certified reference material (molecular formula C7H2BrCl2N3, MW 278.92 g/mol) for analytical method development and quality control.
The molecular framework of 7-Bromo-2,3-dichloropyrido[3,4-b]pyrazine (C7H2BrCl2N3) is characterized by a nitrile group, chlorine/bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 7-Bromo-2,3-dichloropyrido[3,4-b]pyrazine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H2BrCl2N3 |
| Molecular Weight | 278.92 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
- 7-Bromo-2,4-dichloropyrido[3,2-d]pyrimidine (CAS 1215074-41-1)
- 6-Bromo-2,4-dichloropyrido[3,2-d]pyrimidine (CAS 1260665-43-7)
- 3-Bromo-2,5-dichloropyrido[2,3-d]pyridazine (CAS 1447953-10-7)
- 5-Bromo-2,4-dichloropyrido[3,4-d]pyrimidine (CAS 2386555-81-1)
- 6-Bromo-2,4-dichloropyrido[3,4-d]pyrimidine (CAS 2387320-34-3)
- 7-Bromo-2,3-dichloropyrido[2,3-b]pyrazine (CAS 341939-31-9)
- 2-Bromo-1-(6-bromopyridin-3-yl)ethan-1-one (CAS 136592-20-6)
- 2-Bromo-1-(4-bromopyridin-3-yl)ethan-1-one (CAS 1379305-01-7)
Recommended Standards
- 2,6-Dibromo-4-fluorophenyl isocyanide (CAS 730971-47-8)
- 1-(4,6-Dibromopyridin-2-yl)ethan-1-one (CAS 1060815-82-8)
- 2,6-Dibromo-4-fluorobenzonitrile (CAS 404928-18-3)
- 1-(3,5-Dibromopyridin-2-yl)ethanone (CAS 1196156-57-6)
- 6-Bromo-8-fluoro-3,4-dihydroquinolin-2(1H)-one, 97% (CAS 1194459-25-0)
- N-Butyl-N'-(4-chloro-2-methylphenyl)formimidamide (CAS 41657-08-3)
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- Ethyl 2-((2S,3R)-2-(((benzyloxy)carbonyl)amino)-3-hydroxybutanamido)acetate (CAS 27482-74-2)
- 2-(5-Bromo-2-hydroxyphenyl)benzimidazole (CAS 62871-28-7)
- 3-(2-Chlorophenyl)-5-ethyl-1,2-oxazole-4-carboxylic acid (CAS 91961-51-2)
- (2-[(3-HYDROXYPROPYL)AMINO]PYRIMIDIN-5-YL)BORONIC ACID 1208250-22-9 AB41342 (CAS 1208250-22-9)
- 2-(1-Benzofuran-2-carbonyl)pyridine (CAS 17557-42-5)
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