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Key Documents

I28208

Sigma-Aldrich

Isoquinoline

97%

Synonym(s):

β-Quinoline, 2-Azanaphthalene, 2-Benzazine, Benzopyridine

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About This Item

Empirical Formula (Hill Notation):
C9H7N
CAS Number:
Molecular Weight:
129.16
Beilstein:
107549
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

97%

refractive index

n20/D 1.623 (lit.)

bp

242-243 °C (lit.)

mp

26-28 °C (lit.)

density

1.099 g/mL at 25 °C (lit.)

SMILES string

c1ccc2cnccc2c1

InChI

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

InChI key

AWJUIBRHMBBTKR-UHFFFAOYSA-N

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Application

Isoquinoline can be used as:
  • A catalyst in the synthesis of poly(imide)s.
  • A reactant in the synthesis of N-benzyl isoquinoline-1,3,4-triones using iodine as a catalyst.
  • A reactant in the synthesis of 2H-imidazo[5,1-a]isoquinolinium chloride.

Pictograms

Skull and crossbones

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 2

Flash Point(F)

215.6 °F - closed cup

Flash Point(C)

102 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Cascade Synthesis of Functionalized 2H-Imidazo [5, 1-a] isoquinolinium Chlorides from Isoquinoline, Chloroformamidines (= Carbamimidoyl Chlorides), and Isocyanides
Yavari I, et al.
Helvetica Chimica Acta, 93(1), 72-76 (2010)
Iodine-catalyzed oxidative multiple C-H bond functionalization of isoquinolines with methylarenes: an efficient synthesis of isoquinoline-1, 3, 4 (2 H)-triones
Zhu D, et al.
Organic & Biomolecular Chemistry, 15(34), 7112-7116 (2017)
Intrinsically microporous poly (imide) s: structure- porosity relationship studied by gas sorption and X-ray scattering
Ritter N, et al.
Macromolecules, 44(7), 2025-2033 (2011)
Vikas Tyagi et al.
Organic letters, 14(12), 3126-3129 (2012-05-26)
A novel ligand-free palladium-catalyzed cascade reaction for the synthesis of highly diverse isoquinolin-1(2H)-one derivatives from isocyanide and amide precursors synthesized by Ugi-MCR has been developed. A broad variety of acids, amines, and isocyanides were used as starting materials for Ugi-MCR
Yu Lei et al.
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