C9H6O3
162.14 g/mol
Research ReagentWarning
4-Hydroxycoumarin
CAS1076-38-6EC214-060-2
Category
Research Reagent
Compound Class
Heterocycle
Primary Use
Research Compound
4-Hydroxycoumarin is a hydroxycoumarin derivative in which the hydrogen at position 4 of coumarin is replaced by a hydroxy group. It serves as a chemical research reagent and is a conjugate acid of the 4-hydroxycoumarin(1-) anion.
chemical research reagent
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Safety Reference
Warning
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 4-Hydroxycoumarin (CAS 1076-38-6) is 2932.20.
HS code (international, 6-digit)
2932.20
EU CN code (8-digit)
2932 20 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
4-hydroxychromen-2-one
InChIKey
VXIXUWQIVKSKSA-UHFFFAOYSA-N
SMILES
C1=CC=C2C(=C1)C(=CC(=O)O2)O
Synonyms (31)
- 4HC
- Warfarin sodium EP Impurity B
- 2-Hydroxychromone
- 4-Coumarinol
- 4-HYDROXY-1-BENZOPYRAN-2-ONE
- 4-HYDROXYCOUMARINS
- 4-Hydroxy-2H-chromen-2-one
- 4-Hydroxycoumarin
- 4-Hydroxycoumarine
- 4-Monohydroxycoumarin
- 4-OH coumarin
- 4-hydroxy-2-chromenone
- 4-hydroxychromen-2-one
- 4-hydroxyl coumarin
- 4-hyroxycoumarin
- AH-034/32464035
- Benzotetronic acid
- Coumarin, 4-hydroxy-
- WARFARIN SODIUM IMPURITY B
- hydroxychromone
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