1-(4H-1,2,4-Triazol-4-yl)ethanone CAS 21565-40-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21565-40-2 |
| Molecular Formula | C4H5N3O |
| Molecular Weight | 111.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 1-(4H-1,2,4-Triazol-4-yl)ethanone (CAS 21565-40-2) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C4H5N3O. Molecular weight: 111.10 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C4H5N3O |
| Molecular Weight | 111.10 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 3 |
Related H Standards
- 1-(2H-1,2,3-Triazol-2-yl)ethanone (CAS 13253-67-3)
- 1-(1H-1,2,4-Triazol-5-yl)ethanone (CAS 153334-29-3)
- 1-(1H-1,2,4-triazol-1-yl)ethan-1-one (CAS 15625-88-4)
- 1-(1H-1,2,3-Triazol-4-yl)ethanone (CAS 177084-87-6)
- 1-(2H-1,2,3-Triazol-4-yl)ethanone (CAS 6595-45-5)
- 2-(1H-1,2,4-triazol-5-yl)acetaldehyde (CAS 2228462-10-8)
- 1-(4H-1,2,4-Triazol-3-yl)ethanamine (CAS 317830-80-1)
- 2-(1H-1,2,3-Triazol-5-yl)ethanamine (CAS 52845-67-7)
Recommended Standards
- 1-(Isoxazol-5-yl)ethan-1-one (CAS 88511-38-0)
- 1-(1,2-oxazol-3-yl)ethan-1-one (CAS 88511-37-9)
- 1-(Oxazol-2-yl)ethan-1-one (CAS 77311-07-0)
- Tripentyltin Chloride (CAS 3342-67-4)
- 6-(1H-Pyrrol-1-yl)quinoxaline (CAS 478260-01-4)
- Pimavanserin Impurity 25 (CAS CATO-C4X-193825)
- (S)-tert-Butyl 1-(2-methoxy-2-oxoethyl)pyrrolidine-2-carboxylate (CAS 161108-80-1)
- 2-amino-4-hydroxy-5-nitrobenzoic acid (CAS 574738-65-1)
- N-(6-Cyanopyridin-3-yl)acetamide (CAS 1223587-77-6)
- Acetyl-Tau Peptide (273-284) amide trifluoroacetate salt (CAS 1684399-52-7)
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