2-(3-Nitrophenyl)-[1,2,4]triazolo[1,5-c]quinazoline CAS 918802-92-3
| CAS No. | 918802-92-3 |
| Molecular Formula | C15H9N5O2 |
| Molecular Weight | 291.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(3-Nitrophenyl)-[1,2,4]triazolo[1,5-c]quinazoline (CAS 918802-92-3) is a high-purity analytical reference standard with the molecular formula C15H9N5O2 and a molecular weight of 291.26 g/mol.
Based on its molecular formula C15H9N5O2, 2-(3-Nitrophenyl)-[1,2,4]triazolo[1,5-c]quinazoline contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 291.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C15H9N5O2 |
| Molecular Weight | 291.26 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 5 |
Related Nitrophenyl Standards
- 1-(4-Nitrophenyl)indeno[1,2-c]pyrazol-4(1H)-one (CAS 141717-44-4)
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- 4-((5-(2-Nitrophenyl)-1,3,4-oxadiazol-2-yl)thio)but-2-yn-1-ol (CAS 727385-51-5)
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- 4-[4-(4-Nitrophenyl)-2-thiazolyl]morpholine (CAS 125488-18-8)
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Recommended Standards
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- 2-(3,6-Bis(hexyloxy)-9H-xanthen-9-yl)benzamide (CAS 1820618-83-4)
- 7-Fluoro-3,4-dihydro-4-[(5-isoquinolinyloxy)acetyl]-1,3,3-trimethyl-2(1H)-quinoxalinone (CAS 878292-27-4)
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- N-(methylsulfonyl)-N-(o-tolyl)-L-alanine (CAS 1049812-34-1)
- (Tyr?)-C-Peptide (human) (CAS 57327-90-9)
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