1-Methyl-5-phenyl-1H-tetrazole CAS 20743-50-4
| CAS No. | 20743-50-4 |
| Molecular Formula | C8H8N4 |
| Molecular Weight | 160.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Methyl-5-phenyl-1H-tetrazole is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 1-Methyl-5-phenyl-1H-tetrazole (CAS 20743-50-4), a certified reference material (molecular formula C8H8N4, MW 160.18 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H8N4, 1-Methyl-5-phenyl-1H-tetrazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 160.18 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.
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 | C8H8N4 |
| Molecular Weight | 160.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 4 |
Recommended Standards
- 1H-Benzo[d]imidazole-6-carboximidamide (CAS 71892-45-0)
- 1-Phenyl-1h-1,2,3-triazol-4-amine (CAS 2076-64-4)
- 1H-Benzo[d]imidazole-2-carboximidamide (CAS 69006-93-5)
- 1-phenyl-1H-1,2,3-triazol-5-amine (CAS 99584-30-2)
- 3-(methylamino)pyrrolidin-2-one (CAS 1314899-15-4)
- 2,2-Dimethyl-3-(2-nitrophenyl)propanoic acid (CAS 650629-22-4)
- 2-(3-Iodo-5-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1073339-01-1)
- 1-(4-((5-Aminopentyl)amino)quinolin-3-yl)-2,2,2-trifluoroethanone hydrochloride (CAS 1956326-73-0)
- 3,4-Dimethoxy-5-[(1e)-prop-1-en-1-yl]benzoic acid (CAS 877041-35-5)
- 1-(((9H-Fluoren-9-yl)methoxy)carbonyl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylic acid (CAS 1246645-21-5)
- 1,3-Dihydro-1,3-dioxo-2H-isoindol-2-yl 2-ethylbutanoate (CAS 2245137-17-9)
- Ethyl 2-(5-fluoro-3-methylpyridin-2-yl)acetate (CAS 1393566-53-4)
- 1-{[(1,2,3,4-tetrahydronaphthalen-1-yl)amino]methyl}cyclohexan-1-ol (CAS 1179023-85-8)
- ([D?]Val?·1?)-C-Peptide (human) (CAS 1802078-41-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com