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

Belgium 4 China 131 France 2 Germany 10 India 10 Japan 5 Switzerland 2 The Netherlands 1 United Kingdom 16 United States 46 USA 1 Global 228

Biosynth Carbosynth

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Fisher Scientific Uk Ltd.

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Melrob Ltd (part of Nordmann)

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Venchem Ltd.

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Apollo Scientific Ltd

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Apollo Scientific Ltd.

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Apin Chemicals Limited (UK)

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Leancare Ltd.

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CARBONE SCIENTIFIC CO.,LTD

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Eurolabs Limited

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MOLEKULA Ltd.

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ARIAC - Armenian Institute of Applied Chemistry

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Apin Chemicals Ltd.

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VWR International

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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

QUINOXALINE 98%

Quinoxaline,97%

1,4-Benzodiazine,Benzopyrazine

POTASSIUMSODIUMDEHYDROANDROGRAPOLIDESUCCINATE

Quinoxaline, 98+%

Benzo-p-azine

Quinoxaline,99%

Quinoxaline,1,4-Benzodiazine, Benzopyrazine

Quinoxaline &gt

QuinoxaL

Quinoxaline ISO 9001：2015 REACH

Chinoxalin

91-19-0

Building Blocks

Heterocyclic Building Blocks

Quinoxalines

Building Blocks

Chemical Synthesis

Heterocyclic Building Blocks

Quinoxalines

Benzenes

Quinolines, Quinazolines and derivatives

Heterocyclic Compounds