ChemicalBook > CAS DataBase List > Quinaldine

Quinaldine

Product Name
Quinaldine
CAS No.
91-63-4
Chemical Name
Quinaldine
Synonyms
2-METHYLQUINOLINE;2-Methylchinolin;QuinaL;2-Methylpuinoiline;2-METHYLQUINOLINES;NSC-3397;Quildine;Khinaldin;QUINALDINE;Chinaldine
CBNumber
CB7373558
Molecular Formula
C10H9N
Formula Weight
143.19
MOL File
91-63-4.mol
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Quinaldine Property

Melting point:
-2 °C
Boiling point:
248 °C
Density 
1.058 g/mL at 25 °C(lit.)
vapor pressure 
<0.1 hPa (20 °C)
refractive index 
n20/D 1.612(lit.)
Flash point:
175 °F
storage temp. 
Store below +30°C.
solubility 
chloroform: soluble(lit.)
form 
Crystalline Powder
pka
5.83(at 20℃)
color 
White to slightly yellow
PH
6.9 (H2O, 20℃)(saturated aqueous solution)
Water Solubility 
PRACTICALLY INSOLUBLE
Sensitive 
Light Sensitive
Merck 
14,8047
BRN 
110309
Stability:
Stable, but may be light sensitive. Combustible. Incompatible with strong oxidizing agents.
LogP
2.59
CAS DataBase Reference
91-63-4(CAS DataBase Reference)
NIST Chemistry Reference
Quinoline, 2-methyl-(91-63-4)
EPA Substance Registry System
Quinaldine (91-63-4)
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Safety

Hazard Codes 
Xn
Risk Statements 
21/22-68-36/37/38
Safety Statements 
36-45-36/37/39-26
RIDADR 
NA 1993 / PGIII
WGK Germany 
3
RTECS 
UZ9625000
F 
8-23
TSCA 
Yes
HS Code 
29334990
Toxicity
LD50 orally in rats: 1.23 g/kg (Smyth)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H341Suspected of causing genetic defects

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P308+P313IF exposed or concerned: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.05805
Product name
Quinaldine
Purity
for synthesis
Packaging
100mL
Price
$77.2
Updated
2024/03/01
Sigma-Aldrich
Product number
8.05805
Product name
Quinaldine
Purity
for synthesis
Packaging
250ML
Price
$117
Updated
2024/03/01
Sigma-Aldrich
Product number
22550
Product name
Quinaldine
Purity
≥95.0% (GC)
Packaging
250ML
Price
$151
Updated
2024/03/01
Sigma-Aldrich
Product number
22550
Product name
Quinaldine
Purity
≥95.0% (GC)
Packaging
1L
Price
$228
Updated
2024/03/01
TCI Chemical
Product number
Q0005
Product name
2-Methylquinoline
Purity
>98.0%(GC)(T)
Packaging
25g
Price
$24
Updated
2024/03/01
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Quinaldine Chemical Properties,Usage,Production

Chemical Properties

Quinaldine or 2-methylquinoline is an organic compound with the formula CH3C9H6N. It is one of the methyl derivative of a heterocyclic compound quinoline. It is bioactive and is used in the preparation of various dyes. It is a colorless oil but commercial samples can appear colored.

Uses

Quinaldine is an anaesthetic used in fish transportation. Also used in anti-malaria drugs, in manufacturing dyes, food colorants , pharmaceuticals and pH indicators.

Uses

It is an anaesthetic used in fish transportation. Used in preparation of oil-soluble dyes. Also used in anti-malaria drugs, in manufacturing dyes, food colorants , pharmaceuticals and pH indicators.

Production Methods

High-temperature coal tar contains an average of 0.2% quinaldine. It is recovered from the quinoline base mixture by rectification and hydration. Quinaldine can be synthesized by the Skraup method from aniline and crotonaldehyde with sulfuric acid in the presence of a dehydrogenating agent.

Definition

ChEBI: A quinoline compound in which the quinoline skeleton is substituted at C-2 with a methyl group.

Synthesis Reference(s)

Journal of Heterocyclic Chemistry, 13, p. 1279, 1976 DOI: 10.1002/jhet.5570130626
The Journal of Organic Chemistry, 52, p. 3847, 1987 DOI: 10.1021/jo00226a023
Synthesis, p. 324, 1996 DOI: 10.1055/s-1996-4221

General Description

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.

Air & Water Reactions

Slightly soluble in water.

Reactivity Profile

Quinaldine neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides. Keep tightly closed and protected from light .

Hazard

Strong irritant to mucous membranes.

Fire Hazard

Quinaldine is probably combustible.

Purification Methods

Dry it with Na2SO4 or by refluxing with BaO, then fractionally distil it under reduced pressure and redistil it from zinc dust. Purify it further by conversion to its phosphate (m 220o) or picrate (m 192o) from which after recrystallisation, the free base is regenerated. [Packer et al. J Am Chem Soc 80 905 1958.] Its ZnCl2 complex can be used for the same purpose. [Beilstein 20 III/IV 3454, 20 V 375.]

Quinaldine Preparation Products And Raw materials

Raw materials

Isoquinoline Column plate Dibromo COAL TAR Polishing oil Butyraldehyde

Preparation Products

Isoquinoline 2-Quinolinecarboxaldehyde Doxycycline hydrochloride
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View Lastest Price from Quinaldine manufacturers

Hebei Mujin Biotechnology Co.,Ltd
Product
Quinaldine 91-63-4
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-08-23
Hebei Weibang Biotechnology Co., Ltd
Product
Quinaldine 91-63-4
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10 mt
Release date
2024-12-04
Hebei Chuanghai Biotechnology Co,.LTD
Product
2-Methylquinoline 91-63-4
Price
US $5.00-2.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10000kg
Release date
2024-08-23

91-63-4, QuinaldineRelated Search:

5,6,7,8-TETRAHYDROISOQUINOLINE 6-Hydroxy-2(1H)-3,4-dihydroquinolinone 8-Methylquinoline Quinaldic acid Quinhydrone Quinolinic acid 4-methylquinoline Quinclorac Isoquinoline Ethoxyquin 1-Chloro-5-isoquinolinesulfonic Acid N-(3-HYDROXYPROPYL)ETHYLENEDIAMINE Fasudil Impurity 13 Fasudil Impurity 8 HYDROXYFASUDIL MONOHYDROCHLORIDE 1-(p-Toluenesulfonyl)hoMopiperazine, 95% 1,4-ditosyl-1,4-diazepane Fasudil IMpurity 3

  • 2-Methylchinolin
  • 2-Methylpuinoiline
  • QUINALDINE MINIMUM 90% (GC)
  • QUINALDINE 98+%
  • QUINALDINE MIN 96%
  • Quinaldine,~91%
  • Quinaldine97%
  • 2- Methyl Quinoline (Quinaldine)
  • 2-METHYLQUINOLINES
  • NSC-3397
  • o-Methylquinoline
  • QUINALDINE FOR SYNTHESIS 250 ML
  • QUINALDINE FOR SYNTHESIS 100 ML
  • QUINALDINE
  • TIMTEC-BB SBB008939
  • quineline, 2-methyl
  • 2-Methylquionoline
  • 2-Methylqoinoline
  • 2-Quinaldine
  • QUINALDINE, 95+%
  • QuinaL
  • 2-Methylchinol
  • Quinaldine >=95.0% (GC)
  • 2-Methyiquinoline
  • 2-Methylquinoline≥ 98% (GC)
  • Quildine
  • 2-methyl-quinolin
  • alpha-Methylquinoline
  • Chinaldine
  • Khinaldin
  • Quinaldine1
  • Quinoline,2-methyl-
  • 2-METHYLCHINOLINE
  • 2-METHYLQUINOLINE
  • 2-METHYQUINOLINE
  • 2-Methylquinoline &gt
  • Quinaldine USP/EP/BP
  • Isoquinoline Impurity 2
  • 2-Methylquinoline in isooctane
  • 91-63-4
  • CH3C9H6N
  • Quinaldines
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  • Intermediates of Dyes and Pigments