8-Methyl-2-(m-tolyl)quinoline-4-carboxylic acid CAS 438225-30-0
| CAS No. | 438225-30-0 |
| Molecular Formula | C18H15NO2 |
| Molecular Weight | 277.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 277.32 g/mol gives 8-Methyl-2-(m-tolyl)quinoline-4-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
8-Methyl-2-(m-tolyl)quinoline-4-carboxylic acid (CAS 438225-30-0) is a high-purity analytical reference standard with the molecular formula C18H15NO2 and a molecular weight of 277.32 g/mol.
Structurally, 8-Methyl-2-(m-tolyl)quinoline-4-carboxylic acid (C18H15NO2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 277.32 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 8-Methyl-2-(m-tolyl)quinoline-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 | C18H15NO2 |
| Molecular Weight | 277.32 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.) | 2025 |
| Nitrogen Atoms | 1 |
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