3-Ethoxy-5-(4-nitrophenyl)-1H-1,2,4-triazole CAS 62036-19-5
| CAS No. | 62036-19-5 |
| Molecular Formula | C10H10N4O3 |
| Molecular Weight | 234.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Ethoxy-5-(4-nitrophenyl)-1H-1,2,4-triazole (CAS 62036-19-5), molecular formula C10H10N4O3 and molecular weight 234.21 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-Ethoxy-5-(4-nitrophenyl)-1H-1,2,4-triazole (C10H10N4O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 234.21 g/mol, it falls into the medium-molecular-weight range. 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).
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 | C10H10N4O3 |
| Molecular Weight | 234.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 4 |
Related Ethoxy Standards
- 5-Ethoxy-2-(4-nitrophenyl)oxazole (CAS 477867-60-0)
- 6-ethoxy-4-hydroxy-1,5-naphthyridine-3-carboxylic acid (CAS 92808-09-8)
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- Methyl 8-ethoxy-2h-chromene-6-carboxylate (CAS 1235439-14-1)
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Recommended Standards
- 3-[(5-methyl-1,2,4-oxadiazol-3-yl)methoxy]benzoic acid (CAS 923682-07-9)
- 3-Ethyl-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid (CAS 523990-83-2)
- 3-[(2,5-dioxoimidazolidin-1-yl)methyl]benzoic acid (CAS 929974-88-9)
- 3-Ethyl-5-nitro-1H-indole-2-carboxylic acid (CAS 446830-63-3)
- 7-[2-C-Ethynyl-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine (CAS 1291103-01-9)
- 1-(Furan-2-ylmethyl)pyrrolidin-3-amine dihydrochloride (CAS 169452-23-7)
- 2-(2-Isopropoxyphenyl)ethan-1-amine hydrochloride (CAS 1201633-57-9)
- 2-Chloro-9-ethyl-9H-purine (CAS 890093-92-2)
- 4-Amino-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-6(7H)-one (CAS 500282-71-3)
- 2,3-Di(2-naphthyl)quinoxaline (CAS 193699-26-2)
- 4-(4-Acetylbenzoyl)-3,3-dimethylpiperazin-2-one (CAS 952832-62-1)
- 2-(4-Hydroxypiperidin-1-yl)pyrimidine-5-carboxylic acid (CAS 1116339-69-5)
- 1-(1-(4-Bromophenyl)ethyl)-3-butylurea (CAS 1090588-40-1)
- Insulin B (22-25) (CAS 34367-73-2)
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