2-chloro-[1,2,4]triazolo[1,5-a]pyridin-5-amine CAS 1547090-28-7
| CAS No. | 1547090-28-7 |
| Molecular Formula | C6H5ClN4 |
| Molecular Weight | 168.58 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.
2-chloro-[1,2,4]triazolo[1,5-a]pyridin-5-amine (CAS 1547090-28-7) is a high-purity analytical reference standard with the molecular formula C6H5ClN4 and a molecular weight of 168.58 g/mol.
Based on its molecular formula C6H5ClN4, 2-chloro-[1,2,4]triazolo[1,5-a]pyridin-5-amine contains a nitrile group, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 168.58 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 | C6H5ClN4 |
| Molecular Weight | 168.58 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related chloro Standards
- 6-Chloro-1H-pyrrolo[3,2-c]pyridin-2(3H)-one (CAS 1000342-80-2)
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- 6-Chloro-2-methyl-9H-purine (CAS 100859-35-6)
- 3-chloro-6-methyl-[1,2,4]triazolo[4,3-a]pyrimidine (CAS 1019033-24-9)
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Recommended Standards
- 2-chloro-[1,2,4]triazolo[1,5-a]pyridin-7-amine (CAS 1545675-43-1)
- 6-chloro-4-methyl-1H-pyrazolo[3,4-d]pyrimidine (CAS 1547960-36-0)
- 2-chloro-[1,2,4]triazolo[1,5-a]pyridin-6-amine (CAS 1545012-63-2)
- 2-chloro-[1,2,4]triazolo[1,5-a]pyridin-8-amine (CAS 1554455-80-9)
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- N-(3,3-Diethoxypropyl)-1-(6-methylpyridin-2-yl)-1H-imidazole-4-carboxamide (CAS 477890-26-9)
- 4-Hexadecyl-4H-1,2,4-triazole (CAS 188113-56-6)
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