DHQ

Suppliers

Names

[ Name ]:
DHQ

[Synonym ]:
2,3-Quinoxalinedione,1,4-dihydro-
2,3-Dihydroxyphenpiazine
2,3(1H,4H)-Quinoxalinedione
Quinoxaline-2,3(1H,4H)-dione
2,3-Quinoxalinediol
EINECS 239-901-0
MFCD00006723

Chemical & Physical Properties

[ Density]:
1.336g/cm3

[ Boiling Point ]:
470.9ºC at 760mmHg

[ Melting Point ]:
300ºC

[ Molecular Formula ]:
C₈H₆N₂O₂

[ Molecular Weight ]:
162.14500

[ Flash Point ]:
238.6ºC

[ Exact Mass ]:
162.04300

[ PSA ]:
65.72000

[ LogP ]:
0.21640

[ Vapour Pressure ]:
0mmHg at 25°C

[ Index of Refraction ]:
1.762

[ Storage condition ]:
2-8°C

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: VD2100000

CHEMICAL NAME :: 2,3-Quinoxalinediol

CAS REGISTRY NUMBER :: 15804-19-0

LAST UPDATED :: 199701

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C8-H6-N2-O2

MOLECULAR WEIGHT :: 162.16

WISWESSER LINE NOTATION :: T66 BN ENJ CQ DQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NCNSA6 National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. (Washington, DC) Volume(issue)/page/year: 5,26,1953

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 200 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD607-952

Safety Information

[ Hazard Codes ]:
Xn

[ Risk Phrases ]:
22-37/38-41

[ Safety Phrases ]:
S24/25

[ WGK Germany ]:
3

[ RTECS ]:
VD2100000

[ HS Code ]:
2933990090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

Quinoxaline
o-Phenylenediamine
Diethyloxalate
ETHYL 2-(3-OXO-3,4-DIHYDROQUINOXALIN-2-YL)PROPANOATE
2(1H)-Quinoxalinone
Oxalic acid
3-oxo-2-(2'H-pyrido[1',2'-α]-pyrimidin-2'-on-3'-yl)-3,4-dihydroquinoxaline
Dibutyl oxalate
Ethanedioic acid, bis(1-methylethyl) ester

DownStream

2-[(2,3-dioxo-4H-quinoxalin-1-yl)methoxy]ethyl acetate
3,4-dihydroquinoxalin-2-ol
1,2,3,4-Tetrahydroquinoxaline
3-Chloro-2-quinoxalinamine
2-Chloro-3-methoxyquinoxaline
2,3-dibromo-quinoxaline
3-Hydrazino-2-quinoxalinol
6-Chloroquinoxaline-2,3-diol
3-chloro-1H-quinoxalin-2-one
2(1H)-Quinoxalinethione,3-amino-(9CI)

Customs

[ HS Code ]: 2933990090

[ Summary ]:
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

DHQ