2H-1-Benzopyran-2-one,4-chloro

Modify Date: 2026-07-01 20:18:15

2H-1-Benzopyran-2-one,4-chloro Structure
2H-1-Benzopyran-2-one,4-chloro structure
Common Name 2H-1-Benzopyran-2-one,4-chloro
CAS Number 17831-88-8 Molecular Weight 180.58800
Density 1.4g/cm3 Boiling Point 315.8ºC at 760mmHg
Molecular Formula C9H5ClO2 Melting Point N/A
MSDS N/A Flash Point 168ºC

 Names

Name 4-chlorochromen-2-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.4g/cm3
Boiling Point 315.8ºC at 760mmHg
Molecular Formula C9H5ClO2
Molecular Weight 180.58800
Flash Point 168ºC
Exact Mass 179.99800
PSA 30.21000
LogP 2.44640
Vapour Pressure 0.000428mmHg at 25°C
Index of Refraction 1.618
InChIKey RKEYJFRSDLEQIE-UHFFFAOYSA-N
SMILES O=c1cc(Cl)c2ccccc2o1

 Safety Information

HS Code 2932209090

 Customs

HS Code 2932209090
Summary 2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 2H-1-Benzopyran-2-one,4-chloroBioassay

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Name: Inhibition of amyloid beta (1 to 40) monomer aggregation at 100 uM by thioflavin T ba...
Source: ChEMBL
Target: N/A
External Id: CHEMBL1769820
Name: Inhibition of amyloid beta (1 to 40) monomer aggregation assessed as lag time extensi...
Source: ChEMBL
Target: N/A
External Id: CHEMBL1769823
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: 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: Inhibition of amyloid beta (1 to 40) monomer aggregation assessed as reduction in pla...
Source: ChEMBL
Target: N/A
External Id: CHEMBL1769824
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

4-chloro-2H-benzopyran-2-one
4-chloro-2h-chromen-2-one
4-Chlor-cumarin
3-chlorocoumarin
4-Chlorocoumarin
4-Chloro-2H-1-benzopyran-2-one
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