| Identification | More | [Name]
Lepidine | [CAS]
491-35-0 | [Synonyms]
4-Lepidine
4-METHYLCHINOLINE
4-METHYLQUINOLINE
LEPIDINE
4-methyl-quinolin
Cincholepidine
gamma-Methylquinoline
Lepidin
-Methylquinoline
Quinoline,4-methyl-
4-METHYLQUINOLINE 99+%
LEPIDINE, 99% (4-METHYLQUINOLINE)
Lepidine(4-Methylquinoline)99%
Lepidine,98%
4-METHYLQUINUOLINE
4-Methylquinoline, Lepidine
Lepidine ,99% | [EINECS(EC#)]
207-734-2 | [Molecular Formula]
C10H9N | [MDL Number]
MFCD00006784 | [Molecular Weight]
143.19 | [MOL File]
491-35-0.mol |
| Chemical Properties | Back Directory | [Appearance]
clear slightly yellow to brown liquid | [Melting point ]
9-10 °C(lit.)
| [Boiling point ]
261-263 °C(lit.)
| [density ]
1.083 g/mL at 25 °C(lit.)
| [refractive index ]
n20/D 1.620(lit.)
| [Fp ]
>230 °F
| [storage temp. ]
Refrigerator | [solubility ]
Chloroform (Slightly), Methanol (Slightly) | [form ]
Liquid | [pka]
5.67(at 20℃) | [color ]
Pale Orange | [Odor]
at 100.00 %. burnt oily herbal floral sweet | [biological source]
synthetic | [Odor Type]
burnt | [Water Solubility ]
Slightly soluble | [Sensitive ]
Light Sensitive | [Detection Methods]
GC,NMR | [Merck ]
14,5441 | [BRN ]
110926 | [InChIKey]
MUDSDYNRBDKLGK-UHFFFAOYSA-N | [LogP]
2.610 | [CAS DataBase Reference]
491-35-0(CAS DataBase Reference) | [NIST Chemistry Reference]
Quinoline, 4-methyl-(491-35-0) | [Storage Precautions]
Light sensitive | [EPA Substance Registry System]
491-35-0(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi,Xn | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin .
R68:Possible risk of irreversible effects.
R40:Limited evidence of a carcinogenic effect. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S22:Do not breathe dust . | [WGK Germany ]
3 | [RTECS ]
OH0316000 | [F ]
8-10 | [TSCA ]
Yes | [HS Code ]
29334900 | [Hazardous Substances Data]
491-35-0(Hazardous Substances Data) |
| Hazard Information | Back Directory | [Description]
Refer to 6-METHYLQUINOLINE. | [Chemical Properties]
clear slightly yellow to brown liquid | [Physical properties]
4-Methylquinoline is a colorless liquid with a weak quinoline-like odor. It is slightly soluble in water, miscible with many organic solvents, and volatile in steam. | [Uses]
Lepidine is used in the preparation of certain dyes. | [Definition]
ChEBI: A methylquinoline carrying a methyl substituent at position 4. | [Production Methods]
4-Methylquinoline can be recovered from the highest-boiling fraction of the coal-tar quinoline bases via its o-cresol addition compound. It can be synthesized by condensation of aniline and methyl vinyl ketone.
| [Synthesis Reference(s)]
Tetrahedron Letters, 28, p. 5291, 1987 DOI: 10.1016/S0040-4039(00)96710-8 | [General Description]
Synthesis of lepidine from 4-anilinobutan-2-one in ethanol in the presence of HCl or FeCl3 has been reported. Nitration of lepidine has been reported. | [Purification Methods]
Reflux lepidine with BaO, then fractionally distil it. Further purify it via its recrystallised dichromate salt (m 138o) (from H2O). [Cumper et al. J Chem Soc 1176 1962.] [Beilstein 20 III/IV 3477, 20/7 V 389.] |
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