| Identification | More | [Name]
Quinoxaline | [CAS]
91-19-0 | [Synonyms]
1,4-BENZODIAZINE
1,4-DIAZANAPHTHALENE
BENZO(A)PYRAZINE
BENZOPARADIAZINE
BENZOPYRAZINE
PHENPYRAZINE
QUINOXALINE
1,4-Benxodiazine
1,4-Naphthyridine
Phenopiazine
Phenpiazine
Quinazine
USAF EK-7094
usafek-7094
QUINOXALINE 98%
Quinoxaline,97%
1,4-Benzodiazine,Benzopyrazine
POTASSIUMSODIUMDEHYDROANDROGRAPOLIDESUCCINATE
Quinoxaline, 98+%
Benzo-p-azine | [EINECS(EC#)]
202-047-4 | [Molecular Formula]
C8H6N2 | [MDL Number]
MFCD00006719 | [Molecular Weight]
130.15 | [MOL File]
91-19-0.mol |
| Chemical Properties | Back Directory | [Appearance]
light yellow to brown crystalline | [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 | [Fp ]
209 °F
| [storage temp. ]
2-8°C | [solubility ]
alcohol: freely soluble(lit.) | [form ]
Crystalline Low Melting Solid | [pka]
0.56(at 20℃) | [color ]
Light yellow to brown | [Water Solubility ]
SOLUBLE | [Merck ]
14,8078 | [BRN ]
109351 | [Stability:]
Light Sensitive | [LogP]
1.320 | [Uses]
Organic synthesis.
| [CAS DataBase Reference]
91-19-0(CAS DataBase Reference) | [NIST Chemistry Reference]
Quinoxaline(91-19-0) | [EPA Substance Registry System]
91-19-0(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin .
R36/38:Irritating to eyes and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S37/39:Wear suitable gloves and eye/face protection . | [WGK Germany ]
3
| [RTECS ]
VD1225000
| [Hazard Note ]
Irritant | [TSCA ]
Yes | [HS Code ]
29339990 |
| Raw materials And Preparation Products | Back Directory | [Raw materials]
Sodium bisulfite-->o-Phenylenediamine-->Glyoxal-->QUINOXALINE, 6-BROMO-1,2,3,4-TETRAHYDRO--->5,8-DibroMoquinoxaline-->5-Bromoquinoxaline | [Preparation Products]
Olaquindox-->2,3-Pyrazinedicarboxylic acid-->2,3-Pyrazinecarboxylic anhydride-->1,2,3,4-TETRAHYDRO-QUINOXALINE-->6-Bromoquinoxaline |
| Hazard Information | Back Directory | [Chemical Properties]
light yellow to brown crystalline | [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.] |
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