7-Chloro-8-methyl-2-(thiophen-2-yl)quinoline-4-carboxylic acid CAS 588696-19-9
| CAS No. | 588696-19-9 |
| Molecular Formula | C15H10ClNO2S |
| Molecular Weight | 303.76 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.
7-Chloro-8-methyl-2-(thiophen-2-yl)quinoline-4-carboxylic acid (CAS 588696-19-9) is a high-purity analytical reference standard with the molecular formula C15H10ClNO2S and a molecular weight of 303.76 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 7-Chloro-8-methyl-2-(thiophen-2-yl)quinoline-4-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 303.76 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 7-Chloro-8-methyl-2-(thiophen-2-yl)quinoline-4-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 | C15H10ClNO2S |
| Molecular Weight | 303.76 g/mol |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 6-Chloro-2-(5-methylthiophen-2-yl)quinoline-4-carboxylic acid (CAS 438216-95-6)
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- tert-Butyl (3-ethynylcyclopentyl)carbamate (CAS 1823497-00-2)
- (2E)-1-(3,4-Dichlorophenyl)-3-(2-methoxyphenyl)prop-2-en-1-one (CAS 1354942-03-2)
- 3-Ethyl-4-(p-tolyl)-1h-pyrazol-5-amine (CAS 1119391-28-4)
- (S)-1-Benzyl-3-Boc-aminopiperidine (CAS 216854-24-9)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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