2-Mesityl-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-2-ium CAS 1156575-33-5
| CAS No. | 1156575-33-5 |
| Molecular Formula | C16H22N3 |
| Molecular Weight | 256.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 256.37 g/mol gives 2-Mesityl-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-2-ium distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Mesityl-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-2-ium (CAS 1156575-33-5), molecular formula C16H22N3 and molecular weight 256.37 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C16H22N3, 2-Mesityl-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-2-ium contains a nitrogen-containing heterocyclic scaffold, a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 256.37 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.
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.
As a certified reference material (CRM), 2-Mesityl-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-2-ium meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H22N3 |
| Molecular Weight | 256.37 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 3 |
Related Mesityl Standards
- 3-Mesityl-3a,4,5,6,7,7a-hexahydro-4,7-methanobenzo[d]isoxazole (CAS 823218-99-1)
- Methyl 3-mesityl-5-methylisoxazole-4-carboxylate (CAS 823218-96-8)
- 1-Mesityl-2-phenylethane-1,2-dione (CAS 25056-07-9)
- N-Mesityl-2-morpholinoacetamide (CAS 101354-20-5)
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