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
- Molecular Weight:
- 130.15
- MDL Number:
- MFCD00006719
- MOL File:
- 91-19-0.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| Quinoxaline >99.0%(GC)(T) | Q0020 | 25g | $75 |
| Quinoxaline 99% | Q1603 | 25g | $40.3 |
| Quinoxaline | Q750005 | 25g | $65 |
| Quinoxaline | Q750005 | 100g | $140 |
| Quinoxaline | Q750005 | 50g | $90 |
| More product size | |||
| 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 |
| Major Application |
cleaning products clinical cosmetics environmental food and beverages personal care |
| InChI | 1S/C8H6N2/c1-2-4-8-7(3-1)9-5-6-10-8/h1-6H |
| InChIKey | XSCHRSMBECNVNS-UHFFFAOYSA-N |
| SMILES | c1ccc2nccnc2c1 |
| LogP | 1.320 |
| CAS DataBase Reference | 91-19-0(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | QM4AR6M6T8 |
| NIST Chemistry Reference | Quinoxaline(91-19-0) |
| EPA Substance Registry System | Quinoxaline (91-19-0) |
| UNSPSC Code | 41116107 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313 | |||||||||
| 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 | TSCA listed | |||||||||
| HS Code | 29339990 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| NFPA 704 |
|
Quinoxaline price More Price(27)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | Q0020 | Quinoxaline >99.0%(GC)(T) | 91-19-0 | 25g | $75 | 2025-07-31 | Buy |
| Sigma-Aldrich | Q1603 | Quinoxaline 99% | 91-19-0 | 25g | $40.3 | 2025-07-31 | Buy |
| TRC | Q750005 | Quinoxaline | 91-19-0 | 25g | $65 | 2021-12-16 | Buy |
| TRC | Q750005 | Quinoxaline | 91-19-0 | 100g | $140 | 2021-12-16 | Buy |
| TRC | Q750005 | Quinoxaline | 91-19-0 | 50g | $90 | 2021-12-16 | Buy |
Quinoxaline Chemical Properties,Uses,Production
Chemical Properties
light yellow to brown crystalline
Uses
Organic synthesis.
Uses
Quinoxaline is a reagent used in the synthesis of quinoxaline diimides as small molecule non-fullerene acceptors for organic solar cells.
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
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| JINING XINHE CHEMICAL CO., LTD | +8615318402391 | sales@xinhepharma.com | China | 809 | 58 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 13799 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29831 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
| Guangzhou Yuheng Pharmaceutical Technology Co., Ltd | +8613580539051 | joe@yuhengpharm.com | CHINA | 21142 | 58 |
| SIMAGCHEM CORP | +86-5922680277 +86-13806087780 | sale@simagchem.com | China | 17346 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| Hebei Zhanyao Biotechnology Co. Ltd | 15369953316 +8615369953316 | admin@zhanyaobio.com | China | 2123 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | +86-0571-88938639 +8617705817739 | info@dycnchem.com | China | 52846 | 58 |
| CD Chemical Group Limited | +8615986615575 | info@codchem.com | China | 17259 | 58 |
View Lastest Price from Quinoxaline manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2025-04-04 | Quinoxaline
91-19-0
|
US $0.00-0.00 / KG | 1KG | 98% | 1ton | Henan Aochuang Chemical Co.,Ltd. | |
 |
2024-07-20 | Quinoxaline
91-19-0
|
US $0.00-0.00 / kg | 1kg | 98% | 10ton | JINING XINHE CHEMICAL CO., LTD | |
 |
2021-10-14 | Quinoxaline
91-19-0
|
US $10.00 / KG | 1KG | 99% | 20 tons | Hebei Zhanyao Biotechnology Co. Ltd |
-
- Quinoxaline
91-19-0
- US $0.00-0.00 / KG
- 98%
- Henan Aochuang Chemical Co.,Ltd.
-
- Quinoxaline
91-19-0
- US $0.00-0.00 / kg
- 98%
- JINING XINHE CHEMICAL CO., LTD
-
- Quinoxaline
91-19-0
- US $10.00 / KG
- 99%
- Hebei Zhanyao Biotechnology Co. Ltd
