3-(3,4-Dichlorobenzylidene)-2,3-dihydro-1H-cyclopenta[b]quinoline-9-carboxylic acid CAS 380574-48-1
| CAS No. | 380574-48-1 |
| Molecular Formula | C20H13Cl2NO2 |
| Molecular Weight | 370.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(3,4-Dichlorobenzylidene)-2,3-dihydro-1H-cyclopenta[b]quinoline-9-carboxylic acid (CAS 380574-48-1), molecular formula C20H13Cl2NO2 and molecular weight 370.23 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-(3,4-Dichlorobenzylidene)-2,3-dihydro-1H-cyclopenta[b]quinoline-9-carboxylic acid (C20H13Cl2NO2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 370.23 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3-(3,4-Dichlorobenzylidene)-2,3-dihydro-1H-cyclopenta[b]quinoline-9-carboxylic acid 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 | C20H13Cl2NO2 |
| Molecular Weight | 370.23 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dichlorobenzylidene Standards
- 5-(3,4-Dichlorobenzylidene)-3-(2-fluorophenyl)-2-thioxoimidazolidin-4-one (CAS 722465-80-7)
- 2-((2-(3,4-Dichlorobenzylidene)-3-oxo-2,3-dihydrobenzofuran-6-yl)oxy)acetic acid (CAS 900894-52-2)
- 5-(3,4-Dichlorobenzylidene)-2-thioxo-3-(p-tolyl)imidazolidin-4-one (CAS 722465-60-3)
- 1-(5-(2,4-Dichlorobenzylidene)-4-oxo-4,5-dihydrothiazol-2-yl)piperidine-4-carboxamide (CAS 519034-65-2)
- (E)-5-(2,3-dichlorobenzylidene)-3-phenyl-2-thioxoimidazolidin-4-one (CAS 444061-19-2)
- (5E)-5-(2,6-Dichlorobenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-4-one 404846-05-5 (CAS 404846-05-5)
- (5e)-5-(2,4-dichlorobenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4h-imidazol-4-one 444061-38-5 (CAS 444061-38-5)
- N'-(2,3-dichlorobenzylidene)-4-methylbenzenesulfonohydrazide (CAS 347332-69-8)
Recommended Standards
- 3-(2,6-Dichlorophenyl)-5-[(E)-2-[(4-methylphenyl)amino]ethenyl]-1,2-oxazole-4-carbonitrile (CAS 338402-71-4)
- 3-(5-Chlorobenzo[d]oxazol-2-yl)-N-(4-chlorobenzyl)pyridin-2-amine (CAS 339102-11-3)
- 3-(1-(2,6-Dichlorobenzyl)-1H-benzo[d]imidazol-2-yl)pyridin-2(1H)-one (CAS 860784-63-0)
- 3-Dansylaminophenylboronic acid (CAS 75806-94-9)
- 4-(5-Methyl-1h-1,2,3-triazol-1-yl)aniline (CAS 84292-45-5)
- 2,6-Dibromo-4-(3-(tert-butyl)oxazolidin-5-yl)aniline (CAS 88698-33-3)
- (2S,4S)-4-(Thiophen-2-ylmethyl)pyrrolidine-2-carboxylic acid (CAS 1049983-85-8)
- 4-Methylsulfonyl-2,3,3',4',6-pentachlorobiphenyl (CAS 149949-89-3)
- n1-Methyl-n1-[(1-methyl-1h-pyrazol-4-yl)methyl]benzene-1,4-diamine (CAS 1006682-81-0)
- 5-(4-Bromo-2-chlorophenoxymethyl)furan-2-carboxylic acid (CAS 832737-92-5)
- 3-(4-Chlorophenyl)-4H-cyclohepta[d]isoxazol-4-one (CAS 109072-31-3)
- 5-(2-Hydroxyethyl)thiophene-2-carbonitrile (CAS 1333222-43-7)
- 3-{[3-(dimethylamino)propyl]amino}propanenitrile (CAS 69852-45-5)
- TRAF6 Control Peptide trifluoroacetate salt (CAS 852690-80-3)
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