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Quinoline CAS 91-22-5

Quinoline is a heterocyclic aromatic organic compound with the chemical formula C ₉ H ₇ N. It is a colorless or light brown liquid at room temperature, and its color darkens with a special odor after prolonged exposure. It is soluble in most organic solvents and mainly used as a fine chemical intermediate in the synthesis of dyes, pesticides, polymers, and as a solvent and analytical reagent.
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  • 91-22-5

  • bosschemical

  • 91-22-5

Quinoline Basic information

Product Name:

Quinoline

CAS:

91-22-5

MF:

C9H7N

MW:

129.16

EINECS:

202-051-6

Mol File:

91-22-5.mol

Quinoline Chemical Properties

Melting point

-17--13 °C (lit.)

Boiling point

113-114 °C/11 mmHg (lit.) 237 °C (lit.)

density

1.093 g/mL at 25 °C (lit.)

vapor density

4.5 (vs air)

vapor pressure

0.07 mm Hg ( 20 °C)

refractive index

n20/D 1.625(lit.)

Fp

214 °F

storage temp.

Store below +30°C.

solubility

6g/l

form

Liquid

pka

4.9(at 20℃)

color

Purple to dark grey

Odor

Strong, unpleasant.

PH

7.3 (5g/l, H2O, 20℃)

explosive limit

1.2-7%(V)

Odor Type

medicinal

biological source

synthetic

Water Solubility

slightly soluble

Thermal Conductivity

0.144 W/(m·K) at 25 ℃

Sensitive

Light Sensitive & Hygroscopic

Merck

148,068

BRN

107477

Henry's Law Constant

5.9×100 mol/(m3Pa) at 25℃, Duchowicz et al. (2020)

Dielectric constant

2.6(-180℃)

Stability:

Stable. Incompatible with strong acids, strong oxidizing agents. May discolour on exposure to light. Hygroscopic - protect from moisture. Reacts violently and unpredictably with some materials, especially strong oxidizing agents.

Major Application

cleaning products

cosmetics

flavors and fragrances

food and beverages

personal care

InChI

1S/C9H7N/c1-2-6-9-8(4-1)5-3-7-10-9/h1-7H

InChIKey

SMWDFEZZVXVKRB-UHFFFAOYSA-N

SMILES

c1ccc2ncccc2c1

LogP

2.04 at 22℃

Surface tension

43.12mN/m at 20°C

CAS DataBase Reference

91-22-5(CAS DataBase Reference)

NIST Chemistry Reference

Quinoline(91-22-5)

IARC

2B (Vol. 121) 2019

EPA Substance Registry System

Quinoline (91-22-5)

液体.jpg

Items

Specifications

Results

Appearance

Light yellow transparent liquid

Light yellow transparent liquid

Assay

≥98.00%

98.56%

Isoquinoline

<0.1%

0.50%

Dimethylquinoline

<0.5%

0.36%

Water

50.20%

0.06%

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