5-Bromo-2-chloro-3-methoxypyrazine CAS 89283-94-3
| CAS No. | 89283-94-3 |
| Molecular Formula | C5H4BrClN2O |
| Molecular Weight | 223.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Bromo-2-chloro-3-methoxypyrazine.
CATO supplies 5-Bromo-2-chloro-3-methoxypyrazine (CAS 89283-94-3), a certified reference material (molecular formula C5H4BrClN2O, MW 223.46 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H4BrClN2O, 5-Bromo-2-chloro-3-methoxypyrazine contains an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 223.46 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
As a certified reference material (CRM), 5-Bromo-2-chloro-3-methoxypyrazine 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 | C5H4BrClN2O |
| Molecular Weight | 223.46 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.) | 1982 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 4-Bromo-1-methyl-1H-pyrazole-5-carbonyl chloride (CAS 1006448-72-1)
- 5-Bromo-2-chloro-4-hydrazinylpyrimidine (CAS 1021268-16-5)
- 5-Bromo-6-chloro-2-methyl-1H-pyrimidin-4-one (CAS 105806-11-9)
- 5-Bromo-4-chloro-2-methylpyridazin-3(2H)-one (CAS 1123-58-6)
- 5-Bromo-6-chloro-3-methylpyrimidin-4(3H)-one (CAS 117113-95-8)
- 4-Bromo-6-chloro-2-methylpyridazin-3(2H)-one (CAS 1178884-53-1)
- 1-(3-Bromo-5-chloropyrazin-2-yl)hydrazine (CAS 1374652-24-0)
- 4-Bromo-2-chloro-5-methoxypyrimidine (CAS 1441422-23-6)
Recommended Standards
- 4-Bromo-6-chloro-5-methylpyridazin-3(2H)-one (CAS 2875096-32-3)
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- 2-Amino-5-bromo-3-chloropyridin-4-ol (CAS 2034455-39-3)
- 5-Bromo-2-chloro-4-methoxypyrimidine (CAS 57054-92-9)
- 2,4-Dioxo-1-(pyridin-4-ylmethyl)-1,2,3,4-tetrahydropyrimidine-5-carbonitrile (CAS 341966-23-2)
- Cacodylic acid (CAS 75-60-5)
- (S)-2-(3,5-dibromophenyl)pyrrolidine (CAS 1241679-43-5)
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- Benzyl (S)-1-amino-6-azaspiro[2.5]Octane-6-carboxylate (CAS 2098060-63-8)
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- (R)-Ethyl 2-amino-2-phenylacetate (CAS 39251-40-6)
- 4-(Cyclopentylsulfanyl)phenylboronic acid (CAS 1107580-37-9)
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