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15804-19-0

15804-19-0 structure
15804-19-0 structure
  • Name: DHQ
  • Chemical Name: 2,3-Dihydroxyquinoxaline
  • CAS Number: 15804-19-0
  • Molecular Formula: C8H6N2O2
  • Molecular Weight: 162.14500
  • Catalog: Pharmaceutical intermediate Heterocyclic compound Quinoline compound
  • Create Date: 2018-03-05 08:00:00
  • Modify Date: 2025-08-21 06:13:50
  • 2,3-Dihydroxyquinoxaline is a fluorescent reagent. 2,3-Dihydroxyquinoxaline can be used for the determination of trace Pb(II) in vinegar[1].
Name 2,3-Dihydroxyquinoxaline
Synonyms 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
Description 2,3-Dihydroxyquinoxaline is a fluorescent reagent. 2,3-Dihydroxyquinoxaline can be used for the determination of trace Pb(II) in vinegar[1].
Related Catalog
In Vitro 2,3-Dihydroxyquinoxaline (DHQX) shows an intense fluorescence at λex/λem = 328/414 nm[1].
References

[1]. Yang, et al. Synthesis of 2,3-dihydroxyquinoxaline and its application in the determination of trace lead. Huaxue Shiji. Volume: 25. Issue: 1. Pages: 20-22. Journal

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

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
Hazard Codes Xn
Risk Phrases 22-37/38-41
Safety Phrases S24/25
WGK Germany 3
RTECS VD2100000
HS Code 2933990090
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%
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