4-Ethyl-1h-1,2,3-triazole-5-carboxylic acid CAS 104497-05-4
| CAS No. | 104497-05-4 |
| Molecular Formula | C5H7N3O2 |
| Molecular Weight | 141.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C5H7N3O2, 4-Ethyl-1h-1,2,3-triazole-5-carboxylic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 141.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
4-Ethyl-1h-1,2,3-triazole-5-carboxylic acid (CAS 104497-05-4) is a high-purity analytical reference standard with the molecular formula C5H7N3O2 and a molecular weight of 141.13 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Ethyl-1h-1,2,3-triazole-5-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H7N3O2 |
| Molecular Weight | 141.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 3 |
Recommended Standards
- (R)-1,1,1-Trifluoro-3-methylbutan-2-amine (CAS 1032181-63-7)
- Methyl 1-Methyl-1,2,3-triazole-5-carboxylate (CAS 105020-38-0)
- 2,5,7-Triazaspiro[3.4]octane-6,8-dione (CAS 1026796-16-6)
- Methyl 2-Methyl-1,2,3-triazole-4-carboxylate (CAS 105020-39-1)
- 3-Chloro-2-(pyrrolidin-3-yloxy)pyridine (CAS 817187-51-2)
- Methyl 3-(4-methoxyphenyl)-1<I>H</I>-pyrazole-5-carboxylate (CAS 192701-83-0)
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- (3,5-Dichloro-2-fluorophenyl)methanamine (CAS 1525889-94-4)
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