2,4,7,8-tetrachloropyrido[4,3-d]pyrimidine CAS 2454396-63-3
| CAS No. | 2454396-63-3 |
| Molecular Formula | C7H11Cl4N3 |
| Molecular Weight | 278.99 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 2,4,7,8-tetrachloropyrido[4,3-d]pyrimidine.
2,4,7,8-tetrachloropyrido[4,3-d]pyrimidine (CAS 2454396-63-3), molecular formula C7H11Cl4N3 and molecular weight 278.99 g/mol, is a CATO reference standard with documented purity and traceability.
2,4,7,8-tetrachloropyrido[4,3-d]pyrimidine (C7H11Cl4N3) contains a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C7H11Cl4N3 |
| Molecular Weight | 278.99 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.) | 2000 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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