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15804-19-0

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Basic Information
CAS No.: 15804-19-0
Name: 2,3-DIHYDROXYQUINOXALINE
Article Data: 154
Cas Database
Molecular Structure:
Molecular Structure of 15804-19-0 (2,3-DIHYDROXYQUINOXALINE)
Formula: C8H6 N2 O2
Molecular Weight: 162.148
Synonyms: 1,2,3,4-Tetrahydro-2,3-dioxoquinoxaline;1,4-Dihydro-2,3-quinoxalinedione;2,3(1H,4H)-Quinoxalinedione;2,3-Dihydroxyquinoxaline;2,3-Quinoxalinediol;NSC 8698;NSC 9431;
EINECS: 239-901-0
Density: 1.336g/cm3
Melting Point: >300 °C(lit.)
Boiling Point: 470.9°Cat760mmHg
Flash Point: 238.6°C
Hazard Symbols: Xn
Risk Codes: 22-37/38-41
Safety: Poison by intraperitoneal route. When heated to decomposition it emits toxic fumes of NOx.
PSA: 65.72000
LogP: 0.21640
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Chemistry

Empirical Formula: C8H6N2O2 
Molecular Weight: 162.1454 
IUPAC Name: 1,4-Dihydroquinoxaline-2,3-dione
Synonyms: 1,4-Dihydro-2,3-quinoxalinedione ; Quinoxaline, 2,3-dihydroxy- ; 2,3-Quinoxalinedione,1,4-dihydro- ; 1,4-Dihydro-3-quinoxalinedione
Melting Point: >300 °C(lit.)
Flash Point: 238.6 °C 
Boiling Point: 470.9 °C at 760 mmHg 
Density of 2,3-Quinoxalinediol (15804-19-0): 1.336 g/cm3
Vapour Pressure: 1.72E-09 mmHg at 25°C 
Index of Refraction: 1.586 
Chemical Properties: 2,3-Quinoxalinediol (15804-19-0) is an off-white powder

Toxicity Data With Reference

1.    

ipr-rat LDLo:500 mg/kg

     NCNSA6    National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. 5 (1953),26.
2.    

ipr-mus LD50:200 mg/kg

     NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) AD607-952 .

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Poison by intraperitoneal route. When heated to decomposition it emits toxic fumes of NOx. 
Safety Statements: 22: Do not breathe dust
24/25: Avoid contact with skin and eyes 
WGK Germany: 3
RTECS: VD2100000

Specification

 2,3-Quinoxalinediol (15804-19-0) is an off-white powder which is stable under normal temperatures and pressures. It should store in a cool, dry place with a tightly closed container.

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