4-Methylquinoline CAS 491-35-0
| CAS No. | 491-35-0 |
| Molecular Formula | C10H9N |
| Molecular Weight | 143.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 143.19 g/mol gives 4-Methylquinoline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-Methylquinoline (CAS 491-35-0), a certified reference material (molecular formula C10H9N, MW 143.19 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, 4-Methylquinoline is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 143.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 4-Methylquinoline 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 | C10H9N |
| Molecular Weight | 143.19 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Methylquinoline Standards
- 2-Methylquinoline (CAS 91-63-4)
- 6-Methylquinoline (CAS 91-62-3)
- 5-methylquinoline (CAS 7661-55-4)
- 2-Methylquinoline N-Oxide (CAS 1076-28-4)
- 3-Methylquinoline 1-oxide (CAS 1873-55-8)
- 4-Methylquinoline 1-Oxide (CAS 4053-40-1)
- 6-Methylquinoline 1-oxide (CAS 4053-42-3)
- 2-Methylquinoline-5-carbonitrile (CAS 103011-87-6)
Recommended Standards
- 1-Aminonaphthalene (CAS 134-32-7)
- 2-Aminonaphthalene (CAS 91-59-8)
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- N-Nitroso Flecainide EP Impurity B (CAS CATO-C4X-25467)
- (1-((1-Propyl-1h-tetrazol-5-yl)methyl)piperidin-4-yl)methanol (CAS 1311709-25-7)
- 2-Hydrazinyl-3-nitroimidazo[1,2-a]pyridine (CAS 62194-97-2)
- 2-((4-Methylbenzyl)thio)aniline hydrochloride (CAS 1049739-08-3)
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- Ethyl 2-(4-bromo-3-cyano-2-methoxyphenyl)acetate (CAS 1807081-48-6)
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