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4-Hydroxycoumarin

CAS No.
1076-38-6
Chemical Name:
4-Hydroxycoumarin
Synonyms
4-HYDROXY-2H-CHROMEN-2-ONE;HydroxyCoumarin;4-Coumaryl alcohol;4-hydroxy-2h-1-benzopyran-2-on;COUMARINOL;4-HYDROXY-2H-1-BENZOPYRAN-2-ONE;4-Coumarinol;COUMARIN KIT;4-HydroxycouMa;4-HYDROXYCUMARIN
CBNumber:
CB0760607
Molecular Formula:
C9H6O3
Molecular Weight:
162.14
MDL Number:
MFCD00006856
MOL File:
1076-38-6.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-12 09:20:59
Product description Number Pack Size Price
4-Hydroxycoumarin 98% H23805 100g $74.2
4-Hydroxycoumarin 98% H23805 500g $218
4-Hydroxycoumarin analytical standard 40863 100MG $74.9
4-Hydroxycoumarin >98.0%(GC)(T) H0235 25g $57
4-Hydroxycoumarin >98.0%(GC)(T) H0235 250g $410
More product size

4-Hydroxycoumarin Properties

Melting point 211-213 °C (lit.)
Boiling point 228.82°C (rough estimate)
Density 1.1734 (rough estimate)
vapor pressure 0.02Pa at 25℃
refractive index 1.4500 (estimate)
storage temp. Store below +30°C.
solubility DMSO (Slightly), Methanol (Slightly)
form Liquid
pka 4.50±1.00(Predicted)
color Clear colorless to slightly yellow
Odor Very faint woody-medicinal odor with a with Aluminum chloride. nut-like, hcrbaccous tone
Water Solubility PRACTICALLY INSOLUBLE
BRN 129768
InChI 1S/C9H6O3/c10-7-5-9(11)12-8-4-2-1-3-6(7)8/h1-5,10H
InChIKey VXIXUWQIVKSKSA-UHFFFAOYSA-N
SMILES OC1=CC(=O)Oc2ccccc12
LogP 1.6-2.31 at 21.2℃
CAS DataBase Reference 1076-38-6(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII X954ZLL2RD
NIST Chemistry Reference 4-Hydroxycoumarin(1076-38-6)
EPA Substance Registry System 2H-1-Benzopyran-2-one, 4-hydroxy- (1076-38-6)
UNSPSC Code 41116107
NACRES NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P264-P270-P301+P312-P501
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xn,Xi
Risk Statements  22-36/37/38
Safety Statements  26-36
WGK Germany  3
RTECS  DJ3100000
Hazard Note  Irritant
TSCA  TSCA listed
HS Code  29322980
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
REACH Registrations Active
NFPA 704
1
0 0

4-Hydroxycoumarin price More Price(42)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich H23805 4-Hydroxycoumarin 98% 1076-38-6 100g $74.2 2026-04-30 Buy
Sigma-Aldrich H23805 4-Hydroxycoumarin 98% 1076-38-6 500g $218 2026-04-30 Buy
Sigma-Aldrich 40863 4-Hydroxycoumarin analytical standard 1076-38-6 100MG $74.9 2026-04-30 Buy
TCI Chemical H0235 4-Hydroxycoumarin >98.0%(GC)(T) 1076-38-6 25g $57 2026-04-30 Buy
TCI Chemical H0235 4-Hydroxycoumarin >98.0%(GC)(T) 1076-38-6 250g $410 2026-04-30 Buy
Product number Packaging Price Buy
H23805 100g $74.2 Buy
H23805 500g $218 Buy
40863 100MG $74.9 Buy
H0235 25g $57 Buy
H0235 250g $410 Buy

4-Hydroxycoumarin Chemical Properties,Uses,Production

Chemical Properties

Yellow powder or chunks or Slightly yellow needle-like crystals. freely soluble in ethanol, ether and hot water. brown in color with ferric chloride.

Uses

4-Hydroxycoumarin is a plant derived antioxidant, protecting against lipid peroxidation, as well as a potential inhibitor of HIV-1 Integrase. 4-Hydroxycoumarins are a very important class of biologically active drugs which are widely used as anticoagulants-Warfarin and Acenocoumarol.

Uses

4-Hydroxycoumarin is involved in annulation reactions, due to the relatively high acidity of the C-H bond at the 3-position: a three-component reaction with isocyanides and dialkyl acetylene dicarboxylates affords annulated 4H-pyrans.

Uses

4-Hydroxycoumarin may be regarded as a phenylenetetronic acid , and like tetronic acid forms condensation products with aldehydes.
RuCl3.nH2O catalyzed synthesis of biscoumarins
Synthesis of biscoumarin derivatives by the reaction of aldehydes and 4-hydroxycoumarin using ruthenium(III) chloride hydrate as a versatile homogeneous catalyst.

Definition

ChEBI: 4-hydroxycoumarin is a hydroxycoumarin that is coumarin in which the hydrogen at position 4 is replaced by a hydroxy group. It is a conjugate acid of a 4-hydroxycoumarin(1-).

Synthesis Reference(s)

The Journal of Organic Chemistry, 25, p. 677, 1960 DOI: 10.1021/jo01074a630

Flammability and Explosibility

Not classified

Synthesis

4-Hydroxycoumarin is prepared by the reaction of o-hydroxyacetophenone and Diethyl carbonate. The steps are as follows:
General procedure: To a stirred mixture (1.15 mmol) and sodium hydride (138 mg, 5.75 mmol) in 5 ml dry toluene, a solution of the diethyl carbonate (1.15 mmol) in dry toluene was dropped. The mixture was reacted at 0°C for 30 min, then heated to reflux and reacted for another 4 h. The reaction mixture was quenched with water (20 mL) at ice bath and neutralized to pH 7 with 2 N HCl. The precipitate was filtered, washed with cold water and dried to get 6a-f. 1.2.1.1. 4-Hydroxy-2H-chromen-2-one (6a) White solidyield: 95; 1H NMR (600 MHz, DMSO-d6) δ 12.53 (s, 1H), 7.83 (d, J = 7.2 Hz, 1H), 7.65 (d, J = 7.8 Hz, 1H), 7.38-7.34 (m, 2H), 5.60 (s, 1H).
4-Hydroxycoumarin synthesis

Purification Methods

Crystallise 4-hydroxycoumarin from water and dry it in a vacuum desiccator over pKEst Sicapent. [Beilstein 18/1 V 378.]

References

[1] Synthetic Communications, 2001, vol. 31, # 8, p. 1195 - 1200
[2] Journal of the American Chemical Society, 2010, vol. 132, # 1, p. 185 - 194
[3] New Journal of Chemistry, 2018, vol. 42, # 16, p. 13985 - 13997
[4] Organic Letters, 2017, vol. 19, # 4, p. 934 - 937
[5] Patent: US5959109, 1999, A

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View Lastest Price from 4-Hydroxycoumarin manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-Hydroxycoumarin pictures 2026-05-25 4-Hydroxycoumarin
1076-38-6
US $0.00 / Kg/Drum 1KG 98%min HPLC 10kgs WUHAN FORTUNA CHEMICAL CO., LTD
4-Hydroxycoumarin pictures 2026-05-24 4-Hydroxycoumarin
1076-38-6
US $100.00-75.00 / g 1g 99% 5000 HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
4-Hydroxycoumarin pictures 2026-05-21 4-Hydroxycoumarin
1076-38-6
US $0.00 / KG 1KG 99% 100mt/year Jinan Finer Chemical Co., Ltd
  • 4-Hydroxycoumarin pictures
  • 4-Hydroxycoumarin
    1076-38-6
  • US $0.00 / Kg/Drum
  • 98%min HPLC
  • WUHAN FORTUNA CHEMICAL CO., LTD
  • 4-Hydroxycoumarin pictures
  • 4-Hydroxycoumarin
    1076-38-6
  • US $100.00-75.00 / g
  • 99%
  • HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
4-hydroxy-2h-1-benzopyran-2-on COUMARINOL HYDROXYCOUMARIN, 4- 2H-1-BENZOPYRAN-2-ONE, 4-HYDROXY- 4-coumarinyl alcohol 4-HYDROXY-CHROMEN-2-ONE 4-HYDROXYCOUMARIN 4-HYDROXYCUMARIN 4-HYDROXY-1-BENZOPYRAN-2-ONE 4-HYDROXY-2H-1-BENZOPYRAN-2-ONE 4-HYDROXY-2H-CHROMEN-2-ONE AKOS BBS-00000696 4-Coumarinol 4-Coumaryl alcohol 4-HYDROXYCOUMARIN FOR SYNTHESIS 4-hydroxy-couMarin, 4-hydroxy-2H-benzopyran-2-one, 4-hydroxy-2-chroMenone, 4-hydroxycouMarin, 4-hydroxy-2H-benzopyran-2-one, 4-hydroxy-2H-benzo-1-pyran-2-one, 4-hydroxy-2H-benzo[b]pyran-2-one Warfarin EP IMpurity-B 4-HydroxycouMa Warfarin sodium EP Impurity B 4-Hydroxycoumarin Vetec(TM) reagent grade, 98% Warfarin Impurity 2(Warfarin Impurity B) 7-hydroxy-1-benzopyran-2-one 4-HydroxycoumarinN 4-Hydroxycoumarin 1076-38-6 4-Hydroxy-1-benzopyran-2-one 1076-38-6 4-HYDROXYCOUMARIN, FOR FLUORESCENCE 4-Hydroxycoumarin99% HydroxyCoumarin 4-(3-hydroxyprop-1-enyl)phenol 4-HYDROXYCOUMARIN (98.0%) CHROMANONE, 4-(RG) HYDROXYCOUMARIN, 4-(RG) 1-BENZOPYRAN-2-ONE,4-HYDROXY- 4-hydroxy-coumari 4-Hydroxycoumarine Benzotertonicacid Benzotetronic acid Coumarin, 4-hydroxy- 4-Hydroxycoumarin , (4-hydroxy-1-benzopyran-2-one) β-Hydroxy-o-couMaric lactone 4-Hydroxycoumarin, 98+% 4-Hydroxy-2H-1-benzopyrene-2-one 2-Hydroxychromen-4-one Warfarin Impurity B 4-Hydroxy-2H-1-benzopyran-2-one (4- 4-Hydroxycoumarin> Warfarin EP Impurity B (4-Hydroxy Coumarin) Warfarin Impurity 2(Warfarin EP Impurity B) 4-Hydroxycoumarin ISO 9001:2015 REACH 4-Hydroxycoumarin,HPLC≥98% 4-HYDROXYCOMARINS Warfarin Impurity BQ: What is Warfarin Impurity B Q: What is the CAS Number of Warfarin Impurity B Q: What is the storage condition of Warfarin Impurity B Q: What are the applications of Warfarin Impurity B 2-hydroxy-4H-chromen-4-one Warfarin Sodium Impurity B 4-hydroxy-2H-1-benzopyran-2-one(4-hydroxycoumarin) C14230600 4-Hydroxycoumarin COUMARIN KIT Warfarin Sodium Imp. B (EP): 4-hydroxy-2H-1-benzopyran-2-one