2-Amino-5-chloropyrimidine CAS 5428-89-7
| CAS No. | 5428-89-7 |
| Molecular Formula | C4H4ClN3 |
| Molecular Weight | 129.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Amino-5-chloropyrimidine (C4H4ClN3) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
2-Amino-5-chloropyrimidine (CAS 5428-89-7) is a high-purity analytical reference standard with the molecular formula C4H4ClN3 and a molecular weight of 129.55 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C4H4ClN3 |
| Molecular Weight | 129.55 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 | 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.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Amino Standards
- 4-Amino-5-chloropyrimidine (CAS 101257-82-3)
- 2-Amino-3-chloropyrazine (CAS 6663-73-6)
- 4-Amino-2-chloropyrimidine (CAS 7461-50-9)
- 4-Amino-3-chloropyridazine (CAS 55928-83-1)
- 4-Amino-6-chloropyrimidine (CAS 5305-59-9)
- 5-Amino-3-chloropyridazine (CAS 29049-45-4)
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- 2-Amino-6-methylheptane (CAS 543-82-8)
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