4-Chloro-2-(4-chlorophenyl)quinazoline CAS 59490-94-7
| CAS No. | 59490-94-7 |
| Molecular Formula | C14H8Cl2N2 |
| Molecular Weight | 275.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-2-(4-chlorophenyl)quinazoline (CAS 59490-94-7), molecular formula C14H8Cl2N2 and molecular weight 275.13 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C14H8Cl2N2, 4-Chloro-2-(4-chlorophenyl)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 275.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Chloro-2-(4-chlorophenyl)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 | C14H8Cl2N2 |
| Molecular Weight | 275.13 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- Methyl 2-chloro-5-(chlorosulfonyl)thiophene-3-carboxylate (CAS 1629319-10-3)
- 1-Chloro-4-(4-chlorophenyl)phthalazine, 97% (CAS 40848-52-0)
- 2-Chloro-6-(4-chlorostyryl)nicotinonitrile (CAS 946601-99-6)
- 2-Chloro-n-{[(2-chlorophenyl)carbamoyl]methyl}-n-methylacetamide (CAS 733031-13-5)
- 2-chloro-N-{[(3-chlorophenyl)carbamoyl]methyl}-N-methylacetamide (CAS 2060063-94-5)
- 2-Chloro-n-{[(4-chlorophenyl)carbamoyl]methyl}-n-methylacetamide (CAS 851176-01-7)
- 4-Chloro-2-(2-chlorophenyl)quinazoline (CAS 59455-92-4)
- 4-Chloro-n'-(4-chlorobutanoyl)benzohydrazide (CAS 638162-63-7)
Recommended Standards
- 4-Butyl-2-iodoaniline (CAS 952054-06-7)
- 5-(3,4-Dichlorophenyl)-3-methyl-5-oxopentanoic acid (CAS 845781-38-6)
- 4,7-Dichloro-2-phenyl-quinazoline (CAS 54665-92-8)
- 5-(3,5-Dichlorophenyl)-3-methyl-5-oxopentanoic acid (CAS 845781-39-7)
- (S)-N-((2S,4S,5S)-5-Amino-4-hydroxy-1,6-diphenylhexan-2-yl)-3-methyl-2-ureidobutanamide (CAS 1356922-07-0)
- 2-(2-Bromoethyl)-1,1-difluorocyclopropane (CAS 1260664-73-0)
- Methyl 2,2-diphenylcyclopropane-1-carboxylate (CAS 19179-60-3)
- N-(1,2,3-Thiadiazol-4-ylcarbonyl)-N-[3-(trifluoromethyl)phenyl]thiourea (CAS 341965-41-1)
- 2-((4-(Trifluoromethoxy)phenyl)amino)thiazole-4-carboxylic acid (CAS 855531-22-5)
- 2-Bromo-4-(4-methyl-1H-imidazol-2-yl)phenol (CAS 102151-30-4)
- 2,6-difluoro-1-methyl-1H-1,3-benzodiazole (CAS 2297028-52-3)
- 4-(2-Chlorophenyl)-n,n-dimethylpiperazine-1-sulfonamide hydrochloride (CAS 1029989-21-6)
- (2-(3-Chlorobenzyl)phenyl)methanol (CAS 20942-29-4)
- Semaglutide impurity 71 (CAS CATO-C4X-222671)
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