3-(3,4-Dichlorophenyl)-5-phenoxy-[1,2,4]triazolo[4,3-c]quinazoline CAS 477853-50-2
| CAS No. | 477853-50-2 |
| Molecular Formula | C21H12Cl2N4O |
| Molecular Weight | 407.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-(3,4-Dichlorophenyl)-5-phenoxy-[1,2,4]triazolo[4,3-c]quinazoline (C21H12Cl2N4O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 17.0, corresponding to approximately 17 ring(s) or double-bond equivalent(s). With a molecular weight of 407.25 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).
CATO supplies 3-(3,4-Dichlorophenyl)-5-phenoxy-[1,2,4]triazolo[4,3-c]quinazoline (CAS 477853-50-2), a certified reference material (molecular formula C21H12Cl2N4O, MW 407.25 g/mol) for analytical method development and quality control.
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-(3,4-Dichlorophenyl)-5-phenoxy-[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 | C21H12Cl2N4O |
| Molecular Weight | 407.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Dichlorophenyl Standards
- 3-(2,6-Dichlorophenyl)-N-(2,5-dimethoxyphenyl)-5-methylisoxazole-4-carboxamide (CAS 331847-98-4)
- 4-(3,4-Dichlorophenyl)-5-{[3-(trifluoromethyl)phenyl]sulfanyl}-1,2,3-thiadiazole (CAS 400082-15-7)
- N-(3,5-dichlorophenyl)-1-(4-((furan-2-ylmethyl)thio)-3-nitrophenyl)methanimine (CAS 256521-69-4)
- 2-(2-(4-(3,4-Dichlorophenyl)piperazin-1-yl)ethyl)-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one (CAS 860611-78-5)
- 2-(2,4-Dichlorophenyl)-N-(o-tolyl)quinoline-4-carboxamide (CAS 337501-71-0)
- N-(2,3-dichlorophenyl)-6-methyl-2-phenylquinoline-4-carboxamide (CAS 337502-85-9)
- N-(3,4-dichlorophenyl)-6-methyl-2-phenylquinoline-4-carboxamide (CAS 337501-99-2)
- (Z)-5-((5-(3,4-dichlorophenyl)furan-2-yl)methylene)-2-(piperidin-1-yl)thiazol-4(5H)-one (CAS 373371-10-9)
Recommended Standards
- N-(3-Iodo-4-methylphenyl)-2-(pyrrolidin-1-yl)isonicotinamide (CAS 585544-16-7)
- 1-(2,4-Dichloro-5-methoxyphenyl)-N-(2-methoxyphenyl)-5-methyl-1H-1,2,4-triazole-3-carboxamide (CAS 339015-13-3)
- 1-Amino-2-bromo-4-(4-methylanilino)anthracene-9,10-dione (CAS 128-83-6)
- 2-(7-((2,6-Dichlorobenzyl)oxy)-4,8-dimethyl-2-oxo-2H-chromen-3-yl)acetic acid (CAS 858751-48-1)
- Silodosin S-amine Isomer (CAS 1201180-97-3)
- 5-Chloro-1-phenyl-3-propyl-1H-pyrazole-4-carbaldehyde (CAS 176387-54-5)
- (S)-N-(5-(1-(3-(3-fluorophenyl)ureido)ethyl)-2-methylphenyl)imidazo[1,2-a]pyridine-3-carboxamide (CAS 1644070-02-9)
- 2-(3-(3-Bromophenyl)-1H-pyrazol-5-yl)-5-methylphenol (CAS 423753-91-7)
- Finerenone Impurity 225 (CAS CATO-C4X-2880225)
- (R)-2-(2,6-Dimethylphenyl)pyrrolidine (CAS 1213546-22-5)
- 2-(Methylsulfonyl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine (CAS 1111110-37-2)
- 1-[(4-Nitrophenoxy)acetyl]pyrrolidine (CAS 50508-34-4)
- 3-methoxy-2-methyl-1,2,3,4-tetrahydroquinoline hydrochloride (CAS 1803597-51-4)
- Semaglutide Impurity 145 (CAS CATO-C4X-2226145)
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