1-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Modify Date: 2026-07-27 09:33:08

1-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid Structure
1-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid structure
Common Name 1-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
CAS Number 18471-99-3 Molecular Weight 203.19400
Density 1.378g/cm3 Boiling Point 345.9ºC at 760 mmHg
Molecular Formula C11H9NO3 Melting Point N/A
MSDS N/A Flash Point 163ºC

 Names

Name 1-methyl-4-oxoquinoline-3-carboxylic acid
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.378g/cm3
Boiling Point 345.9ºC at 760 mmHg
Molecular Formula C11H9NO3
Molecular Weight 203.19400
Flash Point 163ºC
Exact Mass 203.05800
PSA 59.30000
LogP 1.23670
Vapour Pressure 2.26E-05mmHg at 25°C
Index of Refraction 1.631
InChIKey WBHKMAPRABNYBR-UHFFFAOYSA-N
SMILES Cn1cc(C(=O)O)c(=O)c2ccccc21

 Safety Information

Hazard Codes Xi
HS Code 2933499090

 Synthetic Route

~98%

1-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid Structure

1-Methyl-4-oxo-...

CAS#:18471-99-3

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Literature: Meth-Cohn Synthesis, 1986 , vol. NO. 1, p. 76 - 78

~%

1-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid Structure

1-Methyl-4-oxo-...

CAS#:18471-99-3

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Literature: Golub, Andriy G.; Yakovenko, Olexander Ya.; Bdzhola, Volodymyr G.; Sapelkin, Vladislav M.; Zien, Piotr; Yarmoluk, Sergiy M. Journal of Medicinal Chemistry, 2006 , vol. 49, # 22 p. 6443 - 6450

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1-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid Structure

1-Methyl-4-oxo-...

CAS#:18471-99-3

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Literature: Golub, Andriy G.; Yakovenko, Olexander Ya.; Bdzhola, Volodymyr G.; Sapelkin, Vladislav M.; Zien, Piotr; Yarmoluk, Sergiy M. Journal of Medicinal Chemistry, 2006 , vol. 49, # 22 p. 6443 - 6450

~%

1-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid Structure

1-Methyl-4-oxo-...

CAS#:18471-99-3

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Literature: Drummond; Lahey Austral. J. scient. Res., 1949 , vol. 2, p. 630,634

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1-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid Structure

1-Methyl-4-oxo-...

CAS#:18471-99-3

Learn More
Literature: Meth-Cohn Synthesis, 1986 , vol. NO. 1, p. 76 - 78

~%

1-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid Structure

1-Methyl-4-oxo-...

CAS#:18471-99-3

Learn More
Literature: Drummond; Lahey Austral. J. scient. Res., 1949 , vol. 2, p. 630,634

~%

1-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid Structure

1-Methyl-4-oxo-...

CAS#:18471-99-3

Learn More
Literature: Crow; Price Australian Journal of Scientific Research, Series A: Physical Sciences, 1949 , vol. 2, p. 282,300

~%

1-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid Structure

1-Methyl-4-oxo-...

CAS#:18471-99-3

Learn More
Literature: Crow; Price Australian Journal of Scientific Research, Series A: Physical Sciences, 1949 , vol. 2, p. 282,300

~%

1-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid Structure

1-Methyl-4-oxo-...

CAS#:18471-99-3

Learn More
Literature: Price Austral.J.scient.Res., 1949 , vol. 2, p. 272,276

 Customs

HS Code 2933499090
Summary 2933499090. other compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Bioassay

View more

Name: A screen for compounds that inhibit cell wall-associated teichoic acid synthesis in S...
Source: ICCB-Longwood/NSRB Screening Facility, Harvard Medical School
Target: N/A
External Id: HMS704
Name: Discovery of Small Molecules to Inhibit Human Cytomegalovirus Nuclear Egress
Source: ICCB-Longwood/NSRB Screening Facility, Harvard Medical School
Target: HCMV UL50
External Id: HMS1262
Name: Dicer-mediated maturation of pre-microRNA
Source: Center for Chemical Genomics, University of Michigan
Target: N/A
External Id: TargetID_659_CEMA
Name: Chemical Probes of Kaposi's Sarcoma Herpes Virus Latent Infection
Source: ICCB-Longwood/NSRB Screening Facility, Harvard Medical School
Target: ORF 73 [Human herpesvirus 8 type M]
External Id: HMS791
Name: Inhibitors of CDC25B-CDK2/CyclinA interaction
Source: Center for Chemical Genomics, University of Michigan
External Id: MScreen:TargetID_600
Name: High-throughput screen for inhibitors of the GIV GBA-motif interaction with Galpha-i ...
Source: ICCB-Longwood/NSRB Screening Facility, Harvard Medical School
External Id: HMS1303
Name: A screen for compounds that inhibit the activity of LtaS in Staphylococcus aureus
Source: ICCB-Longwood/NSRB Screening Facility, Harvard Medical School
External Id: HMS979
Name: Cell-based high throughput primary assay to identify activators of GPR151
Source: The Scripps Research Institute Molecular Screening Center
Target: RecName: Full=G-protein coupled receptor 151; AltName: Full=G-protein coupled receptor PGR7; AltName: Full=GPCR-2037; AltName: Full=Galanin receptor 4; AltName: Full=Galanin-receptor-like protein; Short=GalRL
External Id: GPR151_PHUNTER_AG_LUMI_1536_1X%ACT
Name: AlphaScreen-based biochemical high throughput primary assay to identify activators of...
Source: The Scripps Research Institute Molecular Screening Center
Target: N/A
External Id: FBW7_ACT_ALPHA_1536_1X%ACT PRUN
Name: AlphaScreen-based biochemical high throughput primary assay to identify inhibitors of...
Source: The Scripps Research Institute Molecular Screening Center
External Id: MITF_INH_Alpha_1536_1X%INH PRUN
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 Synonyms

1-Methyl-4-oxo-1,4-dihydro-chinolin-3-carbonsaeure
1-methyl-3-quinolinecarboxylic acid-4-one
1-methyl-4-quinolone-3-carboxylic acid
1-methyl-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid
1-methyl-4-oxohydroquinoline-3-carboxylic acid
1-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
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