ChemicalBook >> CAS DataBase List >>2,3-DIHYDROXYQUINOXALINE

2,3-DIHYDROXYQUINOXALINE

CAS No.
15804-19-0
Chemical Name:
2,3-DIHYDROXYQUINOXALINE
Synonyms
usafek-6232;USAF ek-6232;DHQ, 10 mM in DMSO;TIMTEC-BB SBB000138;2,3-QUINOXALINEDIOL;QUINOXALINE-2,3-DIOL;Dihydroxy quinoxaline;2,3-dihydroquinoxaline;2,3-dihydroxy-quinoxalin;2,3-DIHYDROXYQUINOXALINE
CBNumber:
CB7158357
Molecular Formula:
C8H6N2O2
Molecular Weight:
162.15
MDL Number:
MFCD00006723
MOL File:
15804-19-0.mol
MSDS File:
SDS
Last updated:2026-01-13 11:24:36
Product description Number Pack Size Price
2,3-Dihydroxyquinoxaline 98% 144789 25g $45
2,3-Dihydroxyquinoxaline >98.0%(T) D1010 25g $54
1,4-Dihydroquinoxaline-2,3-dione D451645 500mg $45
Quinoxaline-2,3-diol 95%+ 129717 500mg $342
Quinoxaline-2,3-diol 95%+ 129717 1g $540
More product size

2,3-DIHYDROXYQUINOXALINE Properties

Melting point >300 °C (lit.)
Boiling point 288.82°C (rough estimate)
Density 1.3264 (rough estimate)
refractive index 1.5770 (estimate)
storage temp. Inert atmosphere,Room Temperature
form powder to crystaline
pka 10.66±0.20(Predicted)
color White to Orange to Green
BRN 136884
InChI InChI=1S/C8H6N2O2/c11-7-8(12)10-6-4-2-1-3-5(6)9-7/h1-4H,(H,9,11)(H,10,12)
InChIKey ABJFBJGGLJVMAQ-UHFFFAOYSA-N
SMILES N1C2=C(C=CC=C2)NC(=O)C1=O
CAS DataBase Reference 15804-19-0(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII APO55IZ9E1
EPA Substance Registry System 2,3-Quinoxalinedione, 1,4-dihydro- (15804-19-0)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS05,GHS07
Signal word  Danger
Hazard statements  H302-H315-H318-H335
Precautionary statements  P261-P280-P305+P351+P338
target organs Respiratory system
Hazard Codes  Xn
Risk Statements  22-37/38-41
Safety Statements  22-24/25-39-26
WGK Germany  3
RTECS  VD2100000
TSCA  TSCA listed
HS Code  29339900
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Eye Dam. 1
Skin Irrit. 2
STOT SE 3
NFPA 704
1
0 0

2,3-DIHYDROXYQUINOXALINE price More Price(26)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 144789 2,3-Dihydroxyquinoxaline 98% 15804-19-0 25g $45 2025-07-31 Buy
TCI Chemical D1010 2,3-Dihydroxyquinoxaline >98.0%(T) 15804-19-0 25g $54 2025-07-31 Buy
TRC D451645 1,4-Dihydroquinoxaline-2,3-dione 15804-19-0 500mg $45 2021-12-16 Buy
Matrix Scientific 129717 Quinoxaline-2,3-diol 95%+ 15804-19-0 500mg $342 2021-12-16 Buy
Matrix Scientific 129717 Quinoxaline-2,3-diol 95%+ 15804-19-0 1g $540 2021-12-16 Buy
Product number Packaging Price Buy
144789 25g $45 Buy
D1010 25g $54 Buy
D451645 500mg $45 Buy
129717 500mg $342 Buy
129717 1g $540 Buy

2,3-DIHYDROXYQUINOXALINE Chemical Properties,Uses,Production

Chemical Properties

off-white powder

Uses

2,3-Dihydroxyquinoxaline is a fluorescent reagent and it can be used for the determination of trace Pb(II) in vinegar.

Application

2,3-Dihydroxyquinoxaline can be used:
(1)  Basic chemical studies to determine the low-temperature x-ray molecular structure, reciprocal isomerism and spectroscopic properties of 2,3-Dihydroxyquinoxaline[1].
(2) Quinoline-5-carboxamide derivatives (Vq-Vu) and (VIa-Vu) were prepared by using methyl 2,3-diaminobenzoate as raw material[2].

General Description

2,3-Dihydroxyquinoxaline(dhq) undergoes electrophilic substitution reaction with sulphuric acid solution and potassium nitrate to form 2,3-dihydroxy-6-nitroquinoxaline. It reacts with Ru3(CO)12 in DMSO to give the Ru(CO)2(dhq)(DMSO) complex.

References

[1] SAIED M. SOLIMAN; Morsy A M A Y; J?rg Albering. Low temperature X-ray molecular structure, tautomerism and spectral properties of 2,3-dihydroxyquinoxaline[J]. Journal of Molecular Structure, 2013. DOI:10.1016/j.molstruc.2013.09.005.
[2] KEESARI SRINIVAS. Synthesis, Characterization, and Antibacterial Activity of Novel 2,3-Dihydroxyquinoxaline-5-сarboxamide Derivatives[J]. Russian Journal of Bioorganic Chemistry, 2023. DOI:10.1134/S106816202305014X.

1196-57-2
15804-19-0
Synthesis of 2,3-DIHYDROXYQUINOXALINE from 2-Quinoxalinone
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View Lastest Price from 2,3-DIHYDROXYQUINOXALINE manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
DHQ pictures 2026-01-09 DHQ
15804-19-0
US $110.00-41.00 / mg 100.00% 10g TargetMol Chemicals Inc.
2,3-DIHYDROXYQUINOXALINE  pictures 2025-11-18 2,3-DIHYDROXYQUINOXALINE
15804-19-0
US $1.10 / g 1g 99.00% 100 Tons Dideu Industries Group Limited
2,3-Dihydroxyquinoxaline pictures 2025-06-20 2,3-Dihydroxyquinoxaline
15804-19-0
US $0.00 / kg 1kg 0.99 20tons Hebei Yanxi Chemical Co., Ltd.
  • DHQ pictures
  • DHQ
    15804-19-0
  • US $110.00-41.00 / mg
  • 100.00%
  • TargetMol Chemicals Inc.
1,4-Dihydro-2,3-quinoxalinedione 1,4-dihydro-3-quinoxalinedione 2,3(1h,4h)-quinoxalinedione 2,3-dihydroxy-quinoxalin 2,3-Quinoxalinedione, 1,4-dihydro- 2,3-Quinoxalinedione,1,4-dihydro- Quinoxaline, 2,3-dihydroxy- USAF ek-6232 usafek-6232 QUINOXALINE-2,3-DIOL TIMTEC-BB SBB000138 2,3-QUINOXALINEDIOL 2,3-DIHYDROXYQUINOXALINE 2,3-DIHYDROXYPHENPIAZINE quinoxaline-2,3(1H,4H)-dione 2,3-Dihydroxyquinoxaline, 99+% 2,3-dihydroquinoxaline 2,3(1H,4H)-Quinoxalinedione, 2,3-Quinoxalinediol 2,3-Dihydroxyphenpiazine 2,3-Quinoxalinediol 1,2,3,4-Tetrahydro-2,3-dioxoquinoxaline 2,3-Dihydroxyquinoxaline, 99+% 25GR 1,2,3,4-TETRAHYDROQUINOXALINE-2,3-DIONE JR-8397, 2,3-Dihydroxyquinoxaline, 97% 2,3-Dihydroxyquinoxaline > Dihydroxy quinoxaline 2,3-DIHYDROXYQUINOXALINE ISO 9001:2015 REACH 15804-19-0 2,3-DIHYDROXYQUINOXALINE DHQ, 10 mM in DMSO 15804-19-0 Building Blocks Quinoxalines Heterocyclic Building Blocks Bioactive Small Molecules Building Blocks Cell Biology Chemical Synthesis DIG-DY Heterocyclic Building Blocks Quinoxalines Quinolines, Quinazolines and derivatives