(E)-4-Chloro-2-styrylquinazoline CAS 36950-43-3
| CAS No. | 36950-43-3 |
| Molecular Formula | C16H11ClN2 |
| Molecular Weight | 266.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies (E)-4-Chloro-2-styrylquinazoline (CAS 36950-43-3), a certified reference material (molecular formula C16H11ClN2, MW 266.72 g/mol) for analytical method development and quality control.
(E)-4-Chloro-2-styrylquinazoline (C16H11ClN2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), (E)-4-Chloro-2-styrylquinazoline 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 | C16H11ClN2 |
| Molecular Weight | 266.72 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related E Standards
- 2-Chloro-n-[3-(2-oxopyrrolidin-1-yl)phenyl]propanamide (CAS 1087784-11-9)
- 2-(2-Chloro-5-methylphenoxy)-N-(2-cyanoethyl)-N-methylacetamide (CAS 1095168-21-0)
- 2-chloro-N-[4-(2-oxopyrrolidin-1-yl)phenyl]propanamide (CAS 1098347-65-9)
- 2-((3-Chloro-4-methoxyphenyl)amino)-N-(prop-2-yn-1-yl)propanamide (CAS 1132809-00-7)
- N-(2-Chloro-6-(3-hydroxyprop-1-yn-1-yl)pyridin-3-yl)pivalamide (CAS 1142192-04-8)
- 4-(5-Chloro-1-ethyl-1H-benzo[d]imidazol-2-yl)butanoic acid (CAS 1183451-68-4)
- 3-(5-Chloro-1-propyl-1H-benzo[d]imidazol-2-yl)propanoic acid (CAS 1184409-97-9)
- 2-Chloro-n-[2-(2-oxopyrrolidin-1-yl)phenyl]propanamide (CAS 1209190-17-9)
Recommended Standards
- (1S,3R)-3-(3-chlorobenzoyl)cyclohexane-1-carboxylic acid (CAS 735269-78-0)
- 1-(4-Benzoylpiperazin-1-yl)-2-chloroethan-1-one (CAS 69463-43-0)
- (1S,3R)-3-(2-(3-chlorophenyl)-2-oxoethyl)cyclopentane-1-carboxylic acid (CAS 733740-35-7)
- 1-(4-Chlorobenzoyl)piperidine-4-carboxamide (CAS 298685-34-4)
- 2-(3,5-Dimethyl-1H-pyrazol-1-yl)ethyl 4-methylbenzene-1-sulfonate (CAS 67000-34-4)
- 2-Chloro-1-{4-[3-(trifluoromethyl)phenyl]piperazin-1-yl}ethan-1-one (CAS 87358-98-3)
- 4-[ethyl(phenyl)amino]benzoic acid (CAS 1039995-85-1)
- Lansoprazole Related Compound 6 (CAS 1683584-88-4)
- 2'-Deoxy-5-fluorouridine-5'-(4-aminophenyl)monophosphate (CAS 54397-88-5)
- 2-(Aminomethyl)-6-(trifluoromethyl)pyridin-4-ol (CAS 1393555-29-7)
- 5-Fluoro-4-methoxypyridin-2-amine (CAS 1369766-95-9)
- Ethyl (2Z)-2-(methoxyimino)-2-{2-[(2E)-3-phenylprop-2-enamido]-1,3-thiazol-4-yl}acetate (CAS 1024734-17-5)
- 2-Phenyl-4-(p-tolyloxy)isoindoline-1,3-dione (CAS 63181-79-3)
- Des-Pro36-Tirzepatide (CAS CATO-CPTD788937)
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