3-Methyl-2-(4-propylphenyl)quinoline-4-carboxylic acid CAS 901555-88-2
| CAS No. | 901555-88-2 |
| Molecular Formula | C20H19NO2 |
| Molecular Weight | 305.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
3-Methyl-2-(4-propylphenyl)quinoline-4-carboxylic acid (CAS 901555-88-2), molecular formula C20H19NO2 and molecular weight 305.37 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 3-Methyl-2-(4-propylphenyl)quinoline-4-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 305.37 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C20H19NO2 |
| Molecular Weight | 305.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Methyl Standards
- 2-(4-Propylphenyl)quinoline-4-carbohydrazide (CAS 524934-10-9)
- 6-Methyl-2-(4-propylphenyl)quinoline-4-carboxylic acid (CAS 438219-45-5)
- 8-Methyl-2-(4-propylphenyl)quinoline-4-carboxylic acid (CAS 445260-05-9)
- (4-Propylphenyl)(1,9-dioxa-4-azaspiro[5.5]undecan-4-yl)methanone (CAS 1421524-74-4)
- 2-(4-Propylphenyl)quinoline-4-carbonyl chloride (CAS 1160264-65-2)
- trans-4-Propylphenyl 4-pentylcyclohexanecarboxylate (CAS 67589-71-3)
- 2-(4-Propylphenyl)quinoline-4-carboxylic acid (CAS 350997-40-9)
- 6-Methyl-2-(4-propylphenyl)quinoline-4-carbonyl chloride (CAS 1160253-53-1)
Recommended Standards
- 3-Hydroxy-5,6-dimethoxy-2-(piperidin-4-ylmethyl)-2,3-dihydro-1H-inden-1-one (CAS 254886-18-5)
- 4-((3,5-Dimethylphenyl)amino)-4-oxo-2-(piperazin-1-yl)butanoic acid (CAS 540763-94-8)
- 3-Ethoxy-4-(2-(4-methylpiperidin-1-yl)-2-oxoethoxy)benzaldehyde (CAS 896656-99-8)
- 4-((4,6-Dimethoxypyrimidin-5-yl)sulfonyl)thiomorpholine (CAS 861208-71-1)
- 2,3,3,3-Tetrafluoro-2-methoxypropanamide (CAS 10186-65-9)
- 2-Methyl-1-(3-nitrobenzoyl)piperazine (CAS 1240565-23-4)
- N-(3-Cyanobenzylidene)-4-methylbenzenesulfonamide (CAS 496800-11-4)
- (5-Methylpyrimidin-2-yl)boronic acid (CAS 1352548-73-2)
- Belinostat Impurity 3 (CAS CATO-C4X-34903)
- Mal-amido-PEG8-val-gly (CAS 2353409-54-6)
- 6-Chloro-2-(2-methylbenzyl)-1H-benzo[d]imidazole-5-sulfonamide (CAS 89725-27-9)
- 4-Isopropyl-7-methyl-1H-benzo[d]imidazol-2-ol (CAS 99840-60-5)
- Platencin (CAS 869898-86-2)
- Fas C- Terminal Tripeptide (CAS 189109-90-8)
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