ChemicalBook > CAS DataBase List > Quinoxaline

Quinoxaline

Product Name
Quinoxaline
CAS No.
91-19-0
Chemical Name
Quinoxaline
Synonyms
1,4-BENZODIAZINE;BENZOPYRAZINE;BENZOPARADIAZINE;1,4-Naphthyridine;QuinoxaL;Quinazine;Chinoxalin;Phenpiazine;QUINOXALINE;usafek-7094
CBNumber
CB0737379
Molecular Formula
C8H6N2
Formula Weight
130.15
MOL File
91-19-0.mol
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Quinoxaline Property

Melting point:
29-32 °C (lit.)
Boiling point:
220-223 °C (lit.)
Density 
1.124 g/mL at 25 °C (lit.)
refractive index 
nD48 1.6231
Flash point:
209 °F
storage temp. 
2-8°C
solubility 
alcohol: freely soluble(lit.)
pka
0.56(at 20℃)
form 
Crystalline Low Melting Solid
color 
Light yellow to brown
Water Solubility 
SOLUBLE
Merck 
14,8078
BRN 
109351
Stability:
Light Sensitive
LogP
1.320
CAS DataBase Reference
91-19-0(CAS DataBase Reference)
NIST Chemistry Reference
Quinoxaline(91-19-0)
EPA Substance Registry System
Quinoxaline (91-19-0)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38-36/38
Safety Statements 
26-36-37/39
WGK Germany 
3
RTECS 
VD1225000
Hazard Note 
Irritant
TSCA 
Yes
HS Code 
29339990
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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.

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

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

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

P405Store locked up.

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N-Bromosuccinimide Price

TCI Chemical
Product number
Q0020
Product name
Quinoxaline
Purity
>99.0%(GC)(T)
Packaging
25g
Price
$64
Updated
2024/03/01
Alfa Aesar
Product number
A14055
Product name
Quinoxaline, 98+%
Packaging
100g
Price
$53.65
Updated
2024/03/01
Alfa Aesar
Product number
A14055
Product name
Quinoxaline, 98+%
Packaging
500g
Price
$212.65
Updated
2024/03/01
Sigma-Aldrich
Product number
Q1603
Product name
Quinoxaline
Purity
99%
Packaging
25g
Price
$39.1
Updated
2024/03/01
Alfa Aesar
Product number
A14055
Product name
Quinoxaline, 98+%
Packaging
2500g
Price
$987
Updated
2021/12/16
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Quinoxaline Chemical Properties,Usage,Production

Chemical Properties

light yellow to brown crystalline

Uses

Quinoxaline is a reagent used in the synthesis of quinoxaline diimides as small molecule non-fullerene acceptors for organic solar cells.

Uses

Organic synthesis.

Definition

ChEBI: A naphthyridine in which the nitrogens are at positions 1 and 4.

Synthesis Reference(s)

Journal of the American Chemical Society, 69, p. 795, 1947 DOI: 10.1021/ja01196a015
The Journal of Organic Chemistry, 55, p. 1744, 1990 DOI: 10.1021/jo00293a014
Organic Syntheses, Coll. Vol. 4, p. 824, 1963

General Description

Transition metal-free acylation of quinoxaline derivatives, by cross dehydrogenative coupling (CDC) reaction, were studied.

Purification Methods

Crystallise quinoxaline from pet ether. It crystallises as the monohydrate on addition of water to a pet ether solution. It has UV: at 242 and 331nm (Ho –2); 234 and 316nm (pH 7.1). The picrate has m 161-162o.[Albert & Phillips J Chem Soc 1294 1956, Beilstein 23 H 176, 23 II 177, 23 III/IV 1226, 23/7 V 135.]

Quinoxaline Preparation Products And Raw materials

Raw materials

Glyoxal Sodium bisulfite o-Phenylenediamine

Preparation Products

Olaquindox 2,3-Pyrazinedicarboxylic acid 2,3-Pyrazinecarboxylic anhydride
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Quinoxaline Suppliers

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Liuyang huarui material technology co., ltd.
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View Lastest Price from Quinoxaline manufacturers

JINING XINHE CHEMICAL CO., LTD
Product
Quinoxaline 91-19-0
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
10ton
Release date
2024-07-19
Henan Aochuang Chemical Co.,Ltd.
Product
Quinoxaline 91-19-0
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
1ton
Release date
2022-09-26
Hebei Zhanyao Biotechnology Co. Ltd
Product
Quinoxaline 91-19-0
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20 tons
Release date
2021-10-13

91-19-0, QuinoxalineRelated Search:

Glipizide Phenazine DIAZOXIDE 2-Quinoxalinecarboxylic acid 2-Quinoxalinone Pyrazinamide Sulfachoropyrazine sodium QUINAZOLINE-2-CARBOXYLIC ACID 3-Quinolineboronic acid QUINOXALINE-6-CARBALDEHYDE Quinoline-5-boronic acid 6-QUINOXALINECARBONITRILE 2-QUINOXALINYLMETHYLAMINE,97% Quinoxalin-6-yl-MethylaMine hydrochloride 2-QUINOXALINETHIOL Methyl quinoxaline-5-carboxylate (5-METHOXY-2-OXO-2,3-DIHYDRO-1H-INDOL-3-YL)-ACETIC ACID QUINOXALINE-5-CARBOXYLIC ACID

  • 1,4-Benxodiazine
  • 1,4-Naphthyridine
  • Phenopiazine
  • Phenpiazine
  • Quinazine
  • USAF EK-7094
  • usafek-7094
  • QUINOXALINE
  • PHENPYRAZINE
  • (5R,8S,9S,10S,13S,14S,17S)-17-hydroxy-10,13,17-trimethyl-2,3,4,5,6,7,8,9,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-11-one
  • BENZOPARADIAZINE
  • BENZOPYRAZINE
  • BENZO(A)PYRAZINE
  • 1,4-DIAZANAPHTHALENE
  • 1,4-BENZODIAZINE
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  • 91-19-0
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  • Chemical Synthesis
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