5,7-dichloropyrido[3,4-b]pyrazine CAS 1379338-74-5
| CAS No. | 1379338-74-5 |
| Molecular Formula | C7H13Cl2N3 |
| Molecular Weight | 210.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5,7-dichloropyrido[3,4-b]pyrazine (CAS 1379338-74-5) is a high-purity analytical reference standard with the molecular formula C7H13Cl2N3 and a molecular weight of 210.10 g/mol.
The molecular framework of 5,7-dichloropyrido[3,4-b]pyrazine (C7H13Cl2N3) is characterized by a nitrile group, chlorine substitution. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C7H13Cl2N3 |
| Molecular Weight | 210.10 g/mol |
| 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related dichloropyrido Standards
- 4,7-dichloropyrido[4,3-d]pyrimidine (CAS 1260670-81-2)
- 3,6-dichloropyrido[2,3-b]pyrazine (CAS 1350925-22-2)
- 2,5-dichloropyrido[3,4-b]pyrazine (CAS 1600511-80-5)
- 4,6-dichloropyrido[3,2-d]pyrimidine (CAS 175358-02-8)
- 3,5-dichloropyrido[3,4-b]pyrazine (CAS 1952315-15-9)
- 2,3-dichloropyrido[2,3-b]pyrazine (CAS 25710-18-3)
- 2,3-dichloropyrido[3,4-b]pyrazine (CAS 35251-99-1)
- 2,7-dichloropyrido[4,3-d]pyrimidine (CAS 2387158-74-7)
Recommended Standards
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- 3-(3,5-Dimethoxyphenoxy)propanoic acid (CAS 854678-45-8)
- 4-Amino-N,N,1-triethyl-1H-pyrazole-5-carboxamide (CAS 1465474-29-6)
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