1,2,4-Triazol-5-one CAS 42131-33-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 42131-33-9 |
| Molecular Formula | C2HN3O |
| Molecular Weight | 83.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,2,4-Triazol-5-one (CAS 42131-33-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C2HN3O. Molecular weight: 83.05 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C2HN3O |
| Molecular Weight | 83.05 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.) | 1969 |
| Nitrogen Atoms | 3 |
Related Triazol Standards
- 3H-1,2,4-Triazol-3-one (CAS 4045-72-1)
- 2H-1,2,3-Triazol-2-amine (CAS 123312-76-5)
- 1H-1,2,3-Triazol-1-amine (CAS 584-14-5)
- 1H-1,2,4-Triazol-1-amine (CAS 24994-60-3)
- 2H-1,2,3-triazol-4-amine (CAS 573713-80-1)
- 1H-1,2,3-Triazol-5-ol (CAS 106377-28-0)
- 1H-1,2,4-Triazol-5(4H)-one (CAS 122333-30-6)
- 1H-1,2,4-Triazol-5-ol (CAS 122333-32-8)
Recommended Standards
- CAS 57080-79-2 (CAS 57080-79-2)
- Kr-<SUP>83</SUP>Kr (CAS 13965-98-5)
- 4-Methyl-4H-1,2,4-triazole (CAS 10570-40-8)
- S-(2-nitrophenyl)-L-cysteine (CAS 60115-45-9)
- 4-Bromo-5-iodo-6-(trifluoromethyl)pyrimidine (CAS 1706458-44-7)
- 4-fluoro-6-methyl-1H-indazole (CAS 885522-09-8)
- 2,3,3,3-Tetrafluoropropanal (CAS 24528-41-4)
- 5-Fluoro-4H-chromen-4-one (CAS 1386253-18-4)
- Chloro(phenyl)(trifluoromethyl)-l3-iodane (CAS 2204248-93-9)
- Semaglutide impurity 89 (CAS CATO-C4X-222689)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com