ChemicalBook > CAS DataBase List > 4-methylquinoline
4-methylquinoline
- Product Name
- 4-methylquinoline
- CAS No.
- 491-35-0
- Chemical Name
- 4-methylquinoline
- Synonyms
- 4-METHYLQUINOLINE;4-Lepidine;4-METHYLCHINOLINE;Lepidin;epidine;LEPIDINE;Lepidine>Lepidine,98%;Lepidine ,99%;4-Methylchinol
- CBNumber
- CB8121295
- Molecular Formula
- C10H9N
- Formula Weight
- 143.19
- MOL File
- 491-35-0.mol
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4-methylquinoline Property
- 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.)
- Flash point:
- >230 °F
- storage temp.
- Refrigerator
- solubility
- Slightly soluble in water, miscible with alcohol and oils.
- pka
- 5.67(at 20℃)
- form
- Liquid
- color
- Pale Orange
- Odor
- at 100.00 %. burnt oily herbal floral sweet
- Odor Type
- burnt
- Water Solubility
- Slightly soluble
- Sensitive
- Light Sensitive
- 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)
- EPA Substance Registry System
- Quinoline, 4-methyl- (491-35-0)
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Safety
- Hazard Codes
- Xi,Xn
- Risk Statements
- 36/37/38-68-40
- Safety Statements
- 26-36-45-36/37/39-22
- WGK Germany
- 3
- RTECS
- OH0316000
- F
- 8-10
- TSCA
- Yes
- HS Code
- 29334900
- Hazardous Substances Data
- 491-35-0(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
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N-Bromosuccinimide Price
Sigma-Aldrich
- Product number
- 158283
- Product name
- Lepidine
- Purity
- 99%
- Packaging
- 25g
- Price
- $99.3
- Updated
- 2024/03/01
Sigma-Aldrich
- Product number
- 158283
- Product name
- Lepidine
- Purity
- 99%
- Packaging
- 100g
- Price
- $188
- Updated
- 2024/03/01
TCI Chemical
- Product number
- L0024
- Product name
- Lepidine
- Purity
- >97.0%(GC)(T)
- Packaging
- 25mL
- Price
- $59
- Updated
- 2024/03/01
TCI Chemical
- Product number
- L0024
- Product name
- Lepidine
- Purity
- >97.0%(GC)(T)
- Packaging
- 100mL
- Price
- $165
- Updated
- 2024/03/01
Alfa Aesar
- Product number
- A14040
- Product name
- Lepidine, 97%
- Packaging
- 10g
- Price
- $45.65
- Updated
- 2024/03/01
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4-methylquinoline Chemical Properties,Usage,Production
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
4-Methylquinoline is used as a reagent in the synthesis of azetidine based ene-amides as potent bacterial enoyl ACP reductase inhibitors. Also used as a reagent in the synthesis of cyanine-styryl dyes with enhanced photostability for fluorescent DNA imaging.
Uses
4-methylquinoline is used mainly in flavor compositions for imitation Honey, Nut, Butter, Caramel, etc. and in certain fruit complexes. The concentration used is normally about 0.2 to 2 ppm in the finished product.
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.
Definition
ChEBI: A methylquinoline carrying a methyl substituent at position 4.
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.]
4-methylquinoline Preparation Products And Raw materials
Raw materials
Xylene
Acetoacetanilide
ZINC
Ammonium hydroxide
Ethanol
Zinc chloride
Phosphorus oxychloride
Phosphorus pentachloride
Iron chloride hexahydrate
Iodine
Aniline
Ethyl acetate
Acetic acid
Methyl vinyl ketone
Phosphorus
Sulfuric acid
Preparation Products
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View Lastest Price from 4-methylquinoline manufacturers
Hebei Weibang Biotechnology Co., Ltd
- Product
- Lepidine 491-35-0
- Price
- US $10.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 100 mt
- Release date
- 2024-11-13
Hebei Mojin Biotechnology Co., Ltd
- Product
- 4-methylquinoline 491-35-0
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 50000KG/month
- Release date
- 2023-08-25
Career Henan Chemical Co
- Product
- Lepidine 491-35-0
- Price
- US $1.00/kg
- Min. Order
- 1kg
- Purity
- 98%
- Supply Ability
- 100KG
- Release date
- 2018-12-22
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