Diethyl 5-amino-3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-a]pyridine-6,8-dicarboxylate CAS 135449-28-4
| CAS No. | 135449-28-4 |
| Molecular Formula | C17H17N5O4 |
| Molecular Weight | 355.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 355.35 g/mol gives Diethyl 5-amino-3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-a]pyridine-6,8-dicarboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Diethyl 5-amino-3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-a]pyridine-6,8-dicarboxylate (CAS 135449-28-4), molecular formula C17H17N5O4 and molecular weight 355.35 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Diethyl 5-amino-3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-a]pyridine-6,8-dicarboxylate (C17H17N5O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 355.35 g/mol, it falls into the moderately-high-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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Diethyl 5-amino-3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-a]pyridine-6,8-dicarboxylate 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 | C17H17N5O4 |
| Molecular Weight | 355.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 5 |
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Recommended Standards
- methyl 4-[(2,4-diamino-7-oxo-8H-pteridin-6-yl)methyl-methylamino]benzoate (CAS 1330264-75-9)
- (3-Propionamidophenyl)boronic acid (CAS 153853-43-1)
- 1-(4-Amino-5-nitropyrimidin-2-yl)-4-phenethylpiperidine-3,5-dione (CAS 1286697-63-9)
- 5-Bromo-1-(2-((tert-butyldimethylsilyl)oxy)ethyl)-1H-benzo[d]imidazole (CAS 1704067-43-5)
- (8-Fluoro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methanamine hydrochloride (CAS 1955558-29-8)
- 1-(3-(Difluoromethoxy)phenyl)ethan-1-amine hcl (CAS 926263-64-1)
- 1-([1,1'-Biphenyl]-4-yl)hexan-2-ol (CAS 299159-61-8)
- Benzo[4,5]imidazo[1,2-a]pyridine-7,8-diol (CAS 747365-76-0)
- (R,R)-(-)-Pseudoephedrine Glycinamide (CAS 170115-98-7)
- (E)-4-((4-(5-Nitrofuran-2-carboxamido)phenyl)amino)-4-oxobut-2-enoic acid (CAS 2762552-73-6)
- N-Benzyl-N-methyl-1-(piperidin-2-yl)methanamine (CAS 896052-28-1)
- 4-Bromo-5-cyano-2-(difluoromethyl)-3-hydroxypyridine (CAS 1806841-23-5)
- {2-[(4-methylphenyl)sulfanyl]pyridin-3-yl}methyl N-(2-methylphenyl)carbamate (CAS 338413-57-3)
- Semaglutide impurity 274 (CAS CATO-C4X-2226274)
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