7-Chloro-2-(2-ethoxyphenyl)-8-methylquinoline-4-carboxylic acid CAS 862713-31-3
| CAS No. | 862713-31-3 |
| Molecular Formula | C19H16ClNO3 |
| Molecular Weight | 341.79 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-2-(2-ethoxyphenyl)-8-methylquinoline-4-carboxylic acid (CAS 862713-31-3), molecular formula C19H16ClNO3 and molecular weight 341.79 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 7-Chloro-2-(2-ethoxyphenyl)-8-methylquinoline-4-carboxylic acid (C19H16ClNO3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 7-Chloro-2-(2-ethoxyphenyl)-8-methylquinoline-4-carboxylic acid 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 | C19H16ClNO3 |
| Molecular Weight | 341.79 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 3-Acetyl-6-chloro-4-(4-ethoxyphenyl)quinolin-2(1H)-one (CAS 1283109-71-6)
- 1-(5-chloro-8-(pyridin-3-ylamino)isoquinolin-3-yl)-3-ethylurea (CAS 1338254-55-9)
- Benzyl 3-chloro-4-cyano-5,6,7,9-tetrahydro-8H-pyrido[3,4-c]azepine-8-carboxylate (CAS 1341039-99-3)
- (5-Chloro-1-methyl-3-phenyl-1H-pyrazol-4-yl)methyl phenylcarbamate (CAS 318248-39-4)
- (E)-4-(((4-chloro-6-methylpyrimidin-2-yl)imino)methyl)-5-hydroxy-1,6-dihydro-[1,1'-biphenyl]-3(2H)-one (CAS 946387-26-4)
- 1-Boc-4-(2-chloro-6-nitrophenyl)piperazine (CAS 400803-05-6)
- 1-Chloro-1,1-Difluoro-Hexan-2-One (CAS 6302-00-7)
- 2-((4-Chloro-5-oxo-1,2,5,6-tetrahydro-[1,1'-biphenyl]-3-yl)amino)benzoic acid (CAS 937604-84-7)
Recommended Standards
- 7-(((1,2,4-Thiadiazol-5-yl)sulfonyl)methyl)-5-chloroquinolin-8-ol (CAS 922505-47-3)
- 7-Chloro-2-(3-ethoxyphenyl)-8-methylquinoline-4-carboxylic acid (CAS 847503-16-6)
- 6-Chloro-2-(4-propoxyphenyl)quinoline-4-carboxylic acid (CAS 494861-04-0)
- 7-Chloro-2-(4-ethoxyphenyl)-8-methylquinoline-4-carboxylic acid (CAS 862713-30-2)
- Di-n-propyl sulfite (CAS 623-98-3)
- 1H-Pyrrolo[2,3-b]pyridine-3-carbonyl chloride (CAS 721882-63-9)
- 1,4-Dipropylanthracene (CAS 378187-21-4)
- 3-(4-Bromophenyl)-1-(3-chloro-4-fluorophenyl)-1H-pyrazole-4-carbaldehyde (CAS 618098-83-2)
- 2-Amino-N-(2-ethoxyphenyl)thiophene-3-carboxamide (CAS 667437-51-6)
- 6-chloro-3-methyl-1H-pyrazolo[3,4-b]pyrazine (CAS 1638768-76-9)
- 5-Bromo-3-(methylsulfonyl)-1H-pyrazolo[3,4-b]pyridine (CAS 1309778-79-7)
- 5-Bromo-2-chloro-4-isopropylpyrimidine (CAS 1647082-44-7)
- 6,7-Dimethyl 5-(3-chlorophenyl)-1H,3H-pyrrolo[1,2-c][1,3]thiazole-6,7-dicarboxylate (CAS 337920-82-8)
- C-Type Natriuretic Peptide (32-53) (human, porcine, rat) (CAS 127869-51-6)
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