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3,4-Dihydro-3-oxo-2-quinoxalinecarboxylic acid

HCID 71001
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Basic information

CAS
1204-75-7
Standard SMILES
O=C(O)c1nc2ccccc2[nH]c1=O
InChIKey
NMOWGWOAPRKWIR-UHFFFAOYSA-N
Molecular formula
C9H6N2O3
Average molar mass
190.16 g/mol
Monoisotopic mass
190.03784206

Overview

structure given in first source

Names & identifiers

Preferred name
3,4-Dihydro-3-oxo-2-quinoxalinecarboxylic acid
IUPAC
3-oxo-4H-quinoxaline-2-carboxylic acid
English name
3-Hydroxy-2-quinoxalinecarboxylic acid
Molecular formula
C9H6N2O3
Molecular weight
190.16

Names & synonyms

1204-75-73-Hydroxy-2-quinoxalinecarboxylic acid3,4-Dihydro-3-oxo-2-quinoxalinecarboxylic acid2-Quinoxalinecarboxylic acid, 3,4-dihydro-3-oxo-DTXSID60152852RefChem:502353DTXCID70753433-Hydroxyquinoxaline-2-carboxylic acid3-Oxo-3,4-dihydroquinoxaline-2-carboxylic acid3-oxo-4H-quinoxaline-2-carboxylic acid2-Quinoxalinecarboxylic acid, 3-hydroxy-MFCD00006726
Show more names
TIMTEC-BB SBB0036593-HYDROXY-2-QUINOXALINECARBOXYLIC ACID 98%3-Hydroxy-2-quinoxalinecarboxylic acid,98%3-Hydroxy-2-quinoxalinecarboxylic acid, 98% 5GR3-hydroxyquinoxaline-2-carboxylic acid(SALTDATA: FREE)
NSC34263NSC-342633-oxo-4-hydroquinoxaline-2-carboxylic acidEINECS 214-877-4MFCD01457358NSC 34263azaquinolone carboxylic3,4-Dihydro-3-oxoquinoxaline-2-carboxylic acid

Database identifiers

CAS
1204-75-7
PubChem CID
71001
DTXSID
DTXSID60152852
UNII
8Y9CU8XT6P
EC Number
214-877-4
Nikkaji
J145.215K

Properties

Computed structural properties

XLogP
1.2
Topological polar surface area
78.8 Ų
Hydrogen bond donors
2
Hydrogen bond acceptors
4
Rotatable bonds
1
Heavy atoms
14
Formal charge
0
Complexity
311

Experimental & physicochemical properties

Chemical ClassesNitrogen Compounds -> Other Nitrogen Rings
Physical DescriptionSolid; [Acros Organics MSDS]

Physicochemical properties

Melting point
267 · 267-268 °C (lit.)
Boiling point
325.64 °C · 325.64°C (rough estimate)
Density
1.3907 · 1.3907 (rough estimate)
refractive index
1.557 · 1.5570 (estimate)
pka
0.94 · 0.94±0.20(Predicted)
form
Powder and Chunks
color
Green-yellow
InChI
1S/C9H6N2O3/c12-8-7(9(13)14)10-5-3-1-2-4-6(5)11-8/h1-4H,(H,11,12)(H,13,14)
InChIKey
NMOWGWOAPRKWIR-UHFFFAOYSA-N
SMILES
OC(=O)c1nc2ccccc2nc1O
FDA UNII
8 Y9CU8XT6P · 8Y9CU8XT6P

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 4 items

Warning

H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]

P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 40 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Hazards SummaryAn irritant; [Sigma-Aldrich MSDS]
Hazard Classes and CategoriesSkin Irrit. 2 (100%)

Safety data

PPE
dust mask type N95 (US), Eyeshields, Gloves
wgk
3
hs_code
29339900
risk_code
36/37/38
Signal word
Warning
Symbol(GHS)
GHS07
hazard_code
Xi
safety_code
26-37/39
Storage Class
11 - Combustible Solids
target organs
Respiratory system
Hazard statements
H315-H319-H335
Hazard Classifications
Eye Irrit. 2Skin Irrit. 2STOT SE 3
Precautionary statements
P261-P264-P271-P280-P302+P352-P305+P351+P338

Chemistry & industry

Applications · 1 item

Uses3-Hydroxy-2-quinoxalinecarboxylic acid was used to study the sorption of ionizable organic compounds to an estuarine sediment. It was used in the preparation of Zinc(II)-quinoxaline complexes which was characterized by X-ray crystallography and fluorescence spectroscopy.

Related reactions

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Compound notes

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On this pageBasic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
More actions
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UNSPSC Code
12352100 · 12352100
NACRES
22 · NA.22
Symbol(GHS)
7 · GHS07
Signal word
Warning
Hazard statements
315 · H315-H319-H335
Precautionary statements
261 · P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs
Respiratory system
PPE
95 · dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes
Xi
Risk Statements
36 · 36/37/38
Safety Statements
26 · 26-37/39
WGK Germany
3 · 3
HS Code
29339900 · 29339900
Storage Class
11 · 11 - Combustible Solids
Hazard Classifications
2 Skin · Eye Irrit. 2Skin Irrit. 2STOT SE 3