2-Ethyl-3-methylquinoline-4-carboxylic acid CAS 74960-58-0
| CAS No. | 74960-58-0 |
| Molecular Formula | C13H13NO2 |
| Molecular Weight | 215.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-Ethyl-3-methylquinoline-4-carboxylic acid (C13H13NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 215.25 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.
2-Ethyl-3-methylquinoline-4-carboxylic acid (CAS 74960-58-0), molecular formula C13H13NO2 and molecular weight 215.25 g/mol, is a CATO reference standard with documented purity and traceability.
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), 2-Ethyl-3-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 | C13H13NO2 |
| Molecular Weight | 215.25 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- Ethyl 6-Methylquinoline-3-carboxylate (CAS 1239775-53-1)
- Ethyl 2-methylquinoline-5-carboxylate (CAS 141234-05-1)
- Ethyl 4-methylquinoline-2-carboxylate (CAS 142729-99-5)
- Ethyl 2-methylquinoline-3-carboxylate (CAS 15785-08-7)
- Ethyl 5-methylquinoline-8-carboxylate (CAS 1823494-55-8)
- 2-ethyl-3-methylquinoline-8-carboxylic acid (CAS 68742-10-9)
- 2-ethyl-4-methylquinoline-3-carboxylic acid (CAS 847837-40-5)
- 6-Ethyl-2-methylquinoline-4-carboxylic acid (CAS 590376-60-6)
Recommended Standards
- 2-Ethoxynaphthalene-1-carboxamide (CAS 872271-18-6)
- 2-Ethoxy-6-phenylpyrimidin-4-amine (CAS 88614-05-5)
- 2-Ethyl-4-(4-methylbenzylidene)oxazol-5(4H)-one (CAS 538339-32-1)
- 2-Cyclopentylisoindoline-1,3-dione (CAS 53291-79-5)
- Ethyl 1-(3-nitropyridin-2-yl)-piperidine-4-carboxylate (CAS 955396-99-3)
- Benzyl (morpholin-2-ylmethyl)carbamate (CAS 1027375-80-9)
- (E)-N-Hydroxyhex-3-enamide (CAS 114142-24-4)
- (2-Methylcyclohexyl)(3-nitrobenzyl)amine (CAS 355816-37-4)
- Trans-4-(Acetamidomethyl)cyclohexanecarboxylic Acid (CAS 20704-66-9)
- (6-Aminopyridin-2-yl)(2-(hydroxymethyl)pyrrolidin-1-yl)methanone (CAS 1247658-42-9)
- <I>Trans</I>-1-phenyl-1,3-butadiene (CAS 16939-57-4)
- Darunavir Impurity 26 (CAS 1418639-27-6)
- 2-(Cyclohexylmethylidene)propanedinitrile (CAS 73776-46-2)
- Semaglutide impurity 37 (CAS CATO-C4X-222637)
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