5-Chloro-3-(3,4-dichlorophenyl)-[1,2,4]triazolo[4,3-c]quinazoline CAS 339026-00-5
| CAS No. | 339026-00-5 |
| Molecular Formula | C15H7Cl3N4 |
| Molecular Weight | 349.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-Chloro-3-(3,4-dichlorophenyl)-[1,2,4]triazolo[4,3-c]quinazoline (CAS 339026-00-5), a certified reference material (molecular formula C15H7Cl3N4, MW 349.60 g/mol) for analytical method development and quality control.
Based on its molecular formula C15H7Cl3N4, 5-Chloro-3-(3,4-dichlorophenyl)-[1,2,4]triazolo[4,3-c]quinazoline contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 349.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 5-Chloro-3-(3,4-dichlorophenyl)-[1,2,4]triazolo[4,3-c]quinazoline 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 | C15H7Cl3N4 |
| Molecular Weight | 349.60 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- 5-Chloro-3-(2,4-dichlorophenyl)-[1,2,4]triazolo[4,3-c]quinazoline (CAS 129177-22-6)
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- N'1-(2-chloro-6-fluorobenzylidene)-2-(4,5-dichloro-1H-imidazol-1-yl)ethanohydrazide (CAS 649578-72-3)
- 1-(3-Chloro-4-fluorophenyl)-3-(3,5-dichlorophenyl)thiourea (CAS 298215-79-9)
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Recommended Standards
- 4'-Bromo-2'-fluoro-[1,1'-biphenyl]-4-sulfonyl chloride (CAS 677326-82-8)
- 7-(tert-Butyl)-4-chloro-5-iodo-6-methyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 2088748-48-3)
- 4-Bromo-1-((2-chlorophenyl)sulfonyl)-2-fluorobenzene (CAS 933063-00-4)
- (5-Bromo-3-methylbenzofuran-2-yl)(4-chlorophenyl)methanone (CAS 117238-81-0)
- N-(6-Methoxybenzo[d]thiazol-2-yl)-2-(methylthio)nicotinamide (CAS 790720-10-4)
- 1-[(4-Chlorophenyl)methyl]-2-oxo-5-phenyl-1,2-dihydropyridine-3-carbonitrile (CAS 866038-58-6)
- 3-(5-thien-2-yl-1,2,4-oxadiazol-3-yl)aniline (CAS 1154705-08-4)
- Vitamin K1 Impurity 42 (CAS 326475-12-1)
- rac-(2R,6S)-2-ethyl-6-methylpiperazine (CAS 2031242-31-4)
- 5-Bromo-2-ethylaniline hydrochloride (CAS 1799421-02-5)
- 1-(2-(2-Bromophenoxy)ethyl)pyrrolidine (CAS 416876-85-2)
- 2-Acetoxy-4-nitro-benzaldiacetate (CAS 54362-25-3)
- Ethyl 2-bromo-1-butyl-4-methyl-1H-imidazole-5-carboxylate (CAS 1710283-29-6)
- Steroidogenesis-Activator Polypeptide (rat) (H-8855.0500) (CAS 108563-23-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com