7-Chloropyrido[3,4-b]pyrazine CAS 93049-39-9
| CAS No. | 93049-39-9 |
| Molecular Formula | C7H4ClN3 |
| Molecular Weight | 165.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 7-Chloropyrido[3,4-b]pyrazine (CAS 93049-39-9), a certified reference material (molecular formula C7H4ClN3, MW 165.58 g/mol) for analytical method development and quality control.
The molecular framework of 7-Chloropyrido[3,4-b]pyrazine (C7H4ClN3) is characterized by a nitrile group, chlorine 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.
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), 7-Chloropyrido[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 | C7H4ClN3 |
| Molecular Weight | 165.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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.) | 1983 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloropyrido Standards
- 2-Chloropyrido[4,3-d]pyrimidine (CAS 1017422-90-0)
- 5-Chloropyrido[4,3-d]pyrimidine (CAS 1029720-78-2)
- 7-Chloropyrido[2,3-b]pyrazine (CAS 116081-22-2)
- 2-Chloropyrido[3,4-d]pyrimidine (CAS 1234616-61-5)
- 8-Chloropyrido[2,3-b]pyrazine (CAS 1392428-92-0)
- 3-chloropyrido[2,3-b]pyrazine (CAS 155535-23-2)
- 1-Chloropyrido[3,4-d]pyridazine (CAS 162022-92-6)
- 4-Chloropyrido[3,4-d]pyridazine (CAS 162022-93-7)
Recommended Standards
- 6-Chloropyrido[3,4-d]pyrimidine (CAS 202273-25-4)
- 8-Chloropyrido[2,3-d]pyridazine (CAS 23590-59-2)
- 6-Chloropyrido[3,2-b]pyrazine (CAS 68236-03-3)
- 8-Chloropyrido[3,4-b]pyrazine (CAS 929074-47-5)
- 1-(Methylamino)-3-(1h-pyrazol-1-yl)cyclohexane-1-carboxylic acid (CAS 1504475-49-3)
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