5-Chloro-1-phenyl-1H-tetrazole CAS 14210-25-4
| CAS No. | 14210-25-4 |
| Molecular Formula | C7H5ClN4 |
| Molecular Weight | 180.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Chloro-1-phenyl-1H-tetrazole (CAS 14210-25-4) is a high-purity analytical reference standard with the molecular formula C7H5ClN4 and a molecular weight of 180.59 g/mol.
5-Chloro-1-phenyl-1H-tetrazole (C7H5ClN4) contains a nitrile group, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 5-Chloro-1-phenyl-1H-tetrazole 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 | C7H5ClN4 |
| Molecular Weight | 180.59 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
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Recommended Standards
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- 3-chloro-6-(3-chloropiperidin-1-yl)pyridazine (CAS 1185310-37-5)
- 1-(4-Fluoro-2-methoxyphenyl)propan-2-ol (CAS 1532339-94-8)
- 5-Methyl-N-(1h-pyrazol-4-yl)furan-2-carboxamide (CAS 1154961-02-0)
- 3-Bromo-4-(oxetan-3-yloxy)benzoic acid (CAS 1597846-88-2)
- 1-(6,7-dichloro-8-nitro-2,3-dihydro-1,4- benzodioxin-5-yl)-1-ethanone (CAS 166816-12-2)
- Prolactin-Releasing Peptide (1-31) (rat) (CAS 215510-06-8)
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