7-Chloro-[1,2,4]triazolo[4,3-c]pyrimidine-3,8-diamine CAS 7252-17-7
| CAS No. | 7252-17-7 |
| Molecular Formula | C5H5ClN6 |
| Molecular Weight | 184.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
7-Chloro-[1,2,4]triazolo[4,3-c]pyrimidine-3,8-diamine (CAS 7252-17-7) is a high-purity analytical reference standard with the molecular formula C5H5ClN6 and a molecular weight of 184.59 g/mol.
Based on its molecular formula C5H5ClN6, 7-Chloro-[1,2,4]triazolo[4,3-c]pyrimidine-3,8-diamine contains a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 184.59 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C5H5ClN6 |
| Molecular Weight | 184.59 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) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 6 |
Related Chloro Standards
- 4-Chloro-5-fluoro-2,3-dihydro-1H-inden-1-one (CAS 1092347-24-4)
- 6-Chloro-7-fluoro-2,3-dihydro-1H-inden-1-one (CAS 1179361-81-9)
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Recommended Standards
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