4-Oxo-2-(4-pentylphenyl)-1,4-dihydroquinoline-6-carboxylic acid CAS 90034-34-7
| CAS No. | 90034-34-7 |
| Molecular Formula | C21H21NO3 |
| Molecular Weight | 335.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-Oxo-2-(4-pentylphenyl)-1,4-dihydroquinoline-6-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.
CATO supplies 4-Oxo-2-(4-pentylphenyl)-1,4-dihydroquinoline-6-carboxylic acid (CAS 90034-34-7), a certified reference material (molecular formula C21H21NO3, MW 335.40 g/mol) for analytical method development and quality control.
4-Oxo-2-(4-pentylphenyl)-1,4-dihydroquinoline-6-carboxylic acid (C21H21NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C21H21NO3 |
| Molecular Weight | 335.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1982 |
| Nitrogen Atoms | 1 |
Related Oxo Standards
- 4-Pentylphenyl-4'-pentylbenzoate (CAS 74305-48-9)
- trans-4-Pentylphenyl 4-pentylcyclohexanecarboxylate (CAS 67589-72-4)
- 4-(5-(4-Pentylphenyl)pyrimidin-2-yl)benzamide (CAS 63617-55-0)
- Trans-4-pentylphenyl 4-propylcyclohexanecarboxylate (CAS 76025-60-0)
- 4-Pentylphenyl 4-propylbenzoate (CAS 50649-60-0)
- 8-Oxo-8-(4-pentylphenyl)octanoic acid (CAS 898791-51-0)
- trans-2-(4-Pentylphenyl)vinylboronic acid pinacol ester (CAS 907626-13-5)
- 4-Pentylphenyl 4-methoxybenzoate (CAS 38444-13-2)
Recommended Standards
- 4-N-Fmoc-amino-cyclohexanone (CAS 391248-11-6)
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- 4-Ethoxymethylene-2-(4-isopropyl-phenyl)-4H-isoquinoline-1,3-dione (CAS 565168-52-7)
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- 2-Chloro-5-fluoro-4-(piperazin-1-yl)pyrimidine (CAS 666839-74-3)
- N1,2-dimethyl-N1-((tetrahydro-2H-pyran-4-yl)methyl)benzene-1,4-diamine (CAS 1220037-44-4)
- 4-Bromo-3-(trifluoromethyl)benzene-1,2-diamine (CAS 1445995-83-4)
- 2-(2-(Pyridin-4-yl)thiazol-4-yl)acetic acid (CAS 31112-92-2)
- 4-tert-butyl-2-(2,6-difluorophenyl)-1,3-thiazole hydrochloride (CAS 1803597-00-3)
- 4-Bromo-3-ethyl-1-methyl-1H-pyrazole-5-carboxylic acid (CAS 128537-48-4)
- Peptide Impurity 26 (CAS 1350456-66-4)
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