3-(4-Bromophenyl)-[1,2,4]triazolo[4,3-c]quinazoline CAS 129177-14-6
| CAS No. | 129177-14-6 |
| Molecular Formula | C15H9BrN4 |
| Molecular Weight | 325.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 3-(4-Bromophenyl)-[1,2,4]triazolo[4,3-c]quinazoline (C15H9BrN4) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
3-(4-Bromophenyl)-[1,2,4]triazolo[4,3-c]quinazoline (CAS 129177-14-6), molecular formula C15H9BrN4 and molecular weight 325.16 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 3-(4-Bromophenyl)-[1,2,4]triazolo[4,3-c]quinazoline meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C15H9BrN4 |
| Molecular Weight | 325.16 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
Related Bromophenyl Standards
- 3-(4-Bromophenyl)indeno[1,2-c]pyrazol-4(1H)-one (CAS 100007-87-2)
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- 3-(3-Bromophenyl)-2,4-difluoropropiophenone (CAS 1187165-93-0)
- 3-(3-Bromophenyl)-1-(3,4-difluorophenyl)propan-1-one (CAS 898760-79-7)
- 3-(3-Bromophenyl)-1-(3,5-difluorophenyl)propan-1-one (CAS 898760-81-1)
- 3-(4-Bromophenyl)-1-(2,4-difluorophenyl)propan-1-one (CAS 898761-96-1)
- 3-(4-Bromophenyl)-1-(3,4-difluorophenyl)propan-1-one (CAS 898761-98-3)
- 3-(4-Bromophenyl)-1-(3,5-difluorophenyl)propan-1-one (CAS 898762-00-0)
Recommended Standards
- 4-Bromo-N-(3-cyanothiophen-2-yl)-2-fluorobenzamide (CAS 1184462-58-5)
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- N-(6-Bromo-4-oxo-1,4-dihydropyrido[2,3-d]pyrimidin-2-yl)pivalamide (CAS 116387-22-5)
- Methyl 6-bromo-3-formyl-1-isopropyl-1H-indazole-4-carboxylate (CAS 1346703-56-7)
- N-Ethyl-3-bromo-5-methylbenzenesulfonamide (CAS 951885-52-2)
- 5-Bromo-2-(4-methyl-1H-imidazol-1-yl)pyridine (CAS 380382-29-6)
- 3-Chloro-6-methoxy-1H-pyrrolo[3,2-b]pyridine (CAS 1190316-40-5)
- 1-phenyl-1H-1,2,3-triazol-5-amine (CAS 99584-30-2)
- [3-(2-fluorophenoxy)phenyl]methanamine (CAS 1061651-05-5)
- 2-methyl-5-(trifluoromethyl)morpholine (CAS 1375471-67-2)
- 2-Iodo-N-methoxy-5-nitrobenzamide (CAS 1356754-44-3)
- 4-Butoxy-3,5-difluorobenzenethiol (CAS 1379362-65-8)
- 1-(1-(2,2-Difluoroethyl)-1H-pyrazol-3-yl)-N-(4-ethoxybenzyl)methanamine hydrochloride (CAS 1855952-64-5)
- Tau Peptide (512-525) amide trifluoroacetate salt (CAS 2022956-61-0)
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