Description

2-Methylquinoline (CAS 91-63-4) is a high-purity heterocyclic organic compound with the molecular formula C₁₀H₉N. This aromatic compound, also known as Quinaldine, is characterized by a quinoline backbone substituted with a methyl group at the 2-position. It appears as a pale yellow to colorless liquid with a distinct odor and is soluble in organic solvents such as ethanol, ether, and benzene. 2-Methylquinoline is widely utilized in pharmaceutical synthesis, agrochemical production, and as a precursor for dyes and pigments. Our product is rigorously tested to ensure ≥98% purity (GC) and is supplied in sealed amber glass bottles or bulk containers to maintain stability. Ideal for researchers in medicinal chemistry, catalysis, and material science applications.

Properties

• CAS Number: 91-63-4
• Complexity: 133
• IUPAC Name: 2-methylquinoline
• InChI: InChI=1S/C10H9N/c1-8-6-7-9-4-2-3-5-10(9)11-8/h2-7H,1H3
• InChI Key: SMUQFGGVLNAIOZ-UHFFFAOYSA-N
• LogP: 2.59
• Exact Mass: 143.073499291
• Molecular Formula: C10H9N
• Molecular Weight: 143.18
• SMILES: CC1=NC2=CC=CC=C2C=C1
• Topological: 12.9
• Monoisotopic Mass: 143.073499291
• Physical Description: Quinaldine appears as a colorless oily liquid darkening to red-brown on exposure to air. Flash point 175 °F. Denser than water and slightly soluble in water. Vapors heavier than air. Produces toxic oxides of nitrogen during combustion. Used to make dyes, pharmaceuticals and other chemicals.
• Boiling Point: 477.7 °F at 760 mmHg
• Melting Point: 28 °F
• Flash Point: 175 °F
• Density: 1.0585 at 68 °F – Denser than water; will sink
• Vapor Pressure: 0.00946 [mmHg]
• Synonyms: 2-METHYLQUINOLINE, Quinaldine, 91-63-4, Khinaldin, Chinaldine, Quinoline, 2-methyl-, Methylquinoline, 2-Methyl-quinoline, 2-Methylchinolin, CCRIS 1155, NSC 3397, EINECS 202-085-1, BRN 0110309, AI3-11528, WLN: T66 BNJ C1, CHEMBL194931, DVG30M0M87, DTXSID3040271, NSC3397, 5-20-07-00375 (Beilstein Handbook Reference), NSC-3397, MFCD00006756, SBB008939, 27601-00-9, 2-Methylchinolin [Czech], Quinoline, methyl-, UNII-DVG30M0M87, Quinaldine (8CI); 2-Methylquinoline; Khinaldin; NSC 3397, alpha-Methylquinoline, .alpha.-Methylquinoline, DIMETHYLQUINOLINES, Quinaldine, >=95%, QUINALDINE [MI], LS-139877, SCHEMBL3813, SCHEMBL19359, SCHEMBL56360, SCHEMBL96433, Q2125_SIGMA, SCHEMBL295035, SCHEMBL426806, SCHEMBL445326, SCHEMBL445327, SCHEMBL1071858, SCHEMBL1450761, SCHEMBL6290780, SCHEMBL7411349, DTXCID1020271, 22550_FLUKA, CHEBI:132813, Quinaldine, >=95.0% (GC), AIDS020531, HMS1783C21, AIDS-020531, BCP21021, Tox21_302026, 2-Methylquinoline (ACD/Name 4.0), BDBM50159277, STL268892, ZINC01081286, 2-Methylquinoline;Khinaldin;Chinaldine, AKOS000119149, AKOS016371196, FS-4097, 2-METHYL-QUINOLINE (QUINALDINE), CAS-91-63-4, NCGC00188127-01, NCGC00255440-01, DB-057266, NS00021384, Q0005, ST50307925, EN300-17415, A26316, Quinaldine, analytical standard, >=90% (GC), 2-Methylquinoline 100 microg/mL in Acetonitrile, Q415376, Z56926563, F0001-2219, InChI=1/C10H9N/c1-8-6-7-9-4-2-3-5-10(9)11-8/h2-7H,1H

Application

2-Methylquinoline serves as a key intermediate in the synthesis of antimalarial drugs, including quinine derivatives. It is employed as a ligand in transition metal catalysis for asymmetric reactions and as a building block for fluorescent dyes. In agrochemicals, it acts as a precursor for fungicides and plant growth regulators. Additionally, its derivatives are studied for optoelectronic applications due to their luminescent properties.

Safety and Hazards

GHS Hazard Statements

• H302: Harmful if swallowed [Warning Acute toxicity, oral]
• H312: Harmful in contact with skin [Warning Acute toxicity, dermal]
• H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Precautionary Statements

• P264, P264+P265, P270, P280, P301+P317, P302+P352, P305+P351+P338, P317, P321, P330, P337+P317, P362+P364, and P501

Hazard Classes and Categories

• Acute Tox. 4 (100%)
• Acute Tox. 4 (100%)
• Skin Irrit. 2 (29.3%)
• Eye Irrit. 2 (89.5%)
• Muta. 2 (28.3%)
• Aquatic Chronic 3 (28.1%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.