2,5-Dimethyl-2H-1,2,3-triazole-4-carbaldehyde CAS 337310-88-0
| CAS No. | 337310-88-0 |
| Molecular Formula | C5H7N3O |
| Molecular Weight | 125.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2,5-Dimethyl-2H-1,2,3-triazole-4-carbaldehyde (CAS 337310-88-0), molecular formula C5H7N3O and molecular weight 125.13 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a hydroxyl group, an ether linkage, 2,5-Dimethyl-2H-1,2,3-triazole-4-carbaldehyde is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 125.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C5H7N3O |
| Molecular Weight | 125.13 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.) | 2025 |
| Nitrogen Atoms | 3 |
Related Dimethyl Standards
- 1,4-Dimethyl-1h-1,2,3-triazole-5-carbaldehyde (CAS 1083223-99-7)
- 1,5-Dimethyl-1H-1,2,3-triazole-4-carbaldehyde (CAS 1083274-37-6)
- 1,5-Dimethyl-1H-1,2,4-triazole-3-carbaldehyde (CAS 1083274-38-7)
- 3,4-dimethyl-2,5-dihydro-1H-pyrrole-2,5-dione (CAS 17825-86-4)
- 1,3-Dimethyl-1H-1,2,4-triazole-5-carbaldehyde (CAS 877131-01-6)
- 1,3-dimethyl-2,5-dihydro-1H-pyrrole-2,5-dione (CAS 4050-34-4)
- 3,5-Dimethyl-4-isoxazolecarbaldehyde (CAS 54593-26-9)
- 3,6-Dimethyl-1,2,4-triazin-5-ol (CAS 33449-36-4)
Recommended Standards
- 2,5-Diaminopyridin-3-ol (CAS 953018-37-6)
- 2,5-Dimethyloxazole-4-carbaldehyde (CAS 92901-88-7)
- 2,4-Dimethyloxazole-5-carbaldehyde (CAS 69062-86-8)
- 2,6-Diaminopyridin-4-ol (CAS 99845-76-8)
- 3-Methyl-[1,2]oxazolo[5,4-c]pyridine (CAS 83431-06-5)
- 1-(3-Aminophenyl)cyclobutane-1-carbonitrile (CAS 1215103-99-3)
- tert-Butyl (7S,8aS)-rel-7-hydroxy-octahydropyrrolo[1,2-a]piperazine-2-carboxylate (CAS 1273564-60-5)
- 2-((2-Chlorobenzyl)oxy)-4-fluorobenzaldehyde (CAS 1443339-34-1)
- N-Boc-1-pivaloyl D-erythro-Sphingosine (CAS 342649-71-2)
- Benzyl ((trans-4-hydroxypyrrolidin-3-yl)methyl)carbamate hydrochloride (CAS 1951444-34-0)
- 4-(3-Fluoro-4-methoxybenzyl)-3,4-dihydro-2h-benzo[b][1,4]oxazine-2-carboxamide (CAS 924719-89-1)
- 1-(Pyridin-2-yl)-1,4,5,6-tetrahydropyrrolo[3,4-c]pyrazole (CAS 1233025-21-2)
- Bis(4-diethylaminophenyl)methanol (CAS 134-91-8)
- Tirzepatide Impurity 34 (CAS CATO-C4X-324034)
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