1-methyl-2,3-dihydro-1H-1,2,4-triazol-3-one CAS 55847-43-3
| CAS No. | 55847-43-3 |
| Molecular Formula | C3H5N3O |
| Molecular Weight | 99.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-methyl-2,3-dihydro-1H-1,2,4-triazol-3-one (C3H5N3O) contains an amide group, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; 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).
1-methyl-2,3-dihydro-1H-1,2,4-triazol-3-one (CAS 55847-43-3), molecular formula C3H5N3O and molecular weight 99.09 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C3H5N3O |
| Molecular Weight | 99.09 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 3 |
Related methyl Standards
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- 5-Methyl-4,5-dihydro-1H-imidazol-2-amine (CAS 89304-07-4)
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Recommended Standards
- 1-Methyl-1H-1,2,4-triazol-5(4H)-one (CAS 4114-20-9)
- 2-Amino-3,5-dihydro-4H-imidazol-4-one (CAS 503-86-6)
- 1-Methyl-1H-1,2,3-triazol-5-ol (CAS 62150-39-4)
- 2-Aminobut-3-ynoic acid (CAS 73410-55-6)
- 6-(3,4-Dichlorophenyl)-3-azabicyclo[4.1.0]heptane hydrochloride (CAS 1893960-43-4)
- Haloxyfop Impurity 5 (CAS 105118-15-8)
- 5-Chloro-2-(4-fluorobenzoyl)-3-methyl-1-benzofuran (CAS 306979-07-7)
- 6-Bromo-4H-thiochromen-4-one (CAS 20076-75-9)
- 4-Dimethylsulfamoyl-benzoyl chloride (CAS 29171-70-8)
- (Z)-N',4-Dihydroxybenzimidamide (CAS 1219626-47-7)
- 2,4,6-Triiodo-1,3,5-triazine (CAS 5637-87-6)
- 3-(3-Chlorobenzyl)-6-((3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl)methyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one (CAS 1040639-00-6)
- 3-Ethyl-2-methylpentan-3-amine (CAS 90225-52-8)
- Liraglutide(8-31)TFA Salt (CAS CATO-C4X-19922)
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