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
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.]

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4-methylquinoline Suppliers

Hangzhou Yaoruiyicheng Biological Medicine Co., Ltd
Tel
18072846723; 18072846723
Email
caigou1@witofly.com
Country
China
ProdList
311
Advantage
58
Shaanxi Dideu Medichem Co. Ltd
Tel
029-81145920 13259709322
Fax
029-88380327
Email
1027@dideu.com
Country
China
ProdList
10009
Advantage
58
Wuhan EnTai Technology Development Co,.Ltd
Tel
86-27-82330560
Fax
86-27-82330547
Email
2536851935@qq.com
Country
China
ProdList
347
Advantage
69
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
INTATRADE GmbH
Tel
+49 3493/605464
Fax
+49 3493/605470
Email
sales@intatrade.de
Country
Germany
ProdList
3572
Advantage
66
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Beijing dtftchem Technology Co., Ltd.
Tel
010-60275820 13031183356
Fax
010-60270825
Email
elainezt@sina.com
Country
China
ProdList
1390
Advantage
62
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44689
Advantage
61
Jia Xing Isenchem Co.,Ltd
Tel
0573-85285100 18627885956
Fax
0573-85285100
Email
isenchem@163.com
Country
China
ProdList
9414
Advantage
66
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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/PCS
Min. Order
1KG
Purity
99%
Supply Ability
100 mt
Release date
2021-04-12
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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