5-ethynyl-1H-triazole CAS 119720-87-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 119720-87-5 |
| Molecular Formula | C4H3N3 |
| Molecular Weight | 93.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 5-ethynyl-1H-triazole (CAS 119720-87-5) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C4H3N3. Molecular weight: 93.09 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C4H3N3 |
| Molecular Weight | 93.09 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) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
Related ethynyl Standards
- 5-ethynyl-1H-1,2,4-triazole (CAS 2138143-45-8)
- 1-Ethynyl-1H-pyrazole (CAS 103244-40-2)
- 1-Ethynyl-1H-imidazole (CAS 1197210-75-5)
- 2-Ethynyl-1H-imidazole (CAS 57121-47-8)
- 4-Ethynyl-1H-pyrazole (CAS 57121-49-0)
- 5-ethynyl-1H-imidazole (CAS 57121-48-9)
- 1-ethyl-1-ethynyl-cyclopropane (CAS 2101782-55-0)
- 2-Ethynyl-1H-pyrrole (CAS 67237-51-8)
Recommended Standards
- 5-Ethynyloxazole (CAS 872122-50-4)
- 4-Cyanopyrazole (CAS 31108-57-3)
- 4-Ethynylisoxazole (CAS 2138142-75-1)
- 2'-Deoxypseudoisocytidine (CAS 65358-18-1)
- (R)-N-[2-(2,6-dimethylphenoxy)-1-methylethyl]acetamide (CAS 141552-89-8)
- 2-[2-(Trifluoromethyl)-1,3-thiazol-4-yl]ethan-1-ol (CAS 180207-34-5)
- Methyl (2-oxo-2-(piperidin-1-yl)ethyl)glycinate (CAS 1021000-92-9)
- 4-(But-3-en-1-yloxy)benzaldehyde (CAS 105534-98-3)
- Benzyl 3-((2-aminoethyl)(cyclopropyl)amino)piperidine-1-carboxylate (CAS 1353988-18-7)
- Semaglutide impurity 106 (CAS CATO-C4X-2226106)
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 13829788188 / jacky.chen@cato-chem.com