C8H8O2
136.15 g/mol
Flavor & FragranceWarning
4'-Hydroxyacetophenone
CAS99-93-4EC202-802-8
Category
Flavor & Fragrance
Compound Class
Aromatic
Primary Use
flavoring agent and intermediate
4'-Hydroxyacetophenone is a phenolic compound naturally occurring in Norway spruce needles and mycorrhizal roots. It is primarily used as a flavoring agent and a chemical intermediate in industrial applications.
flavoring agentchemical intermediate
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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Related Compounds
ApplicationSame Use
Methyl laurate
CAS111-82-0
flavoring agent and intermediate
ReferenceSame Category
P-cymene
CAS99-87-6
Solvent and fragrance ingredient
ReferenceSame Category
Α-phellandrene
CAS99-83-2
flavor and fragrance ingredient
ReferenceSame Category
Methyl 4-methylbenzoate
CAS99-75-2
fragrance for consumer products
ReferenceSame Category
Acetophenone
CAS98-86-2
Flavor and fragrance intermediate
Safety Reference
Warning
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H412Harmful to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for 4'-Hydroxyacetophenone (CAS 99-93-4) is 2914.50.
HS code (international, 6-digit)
2914.50
EU CN code (8-digit)
2914 50 00
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
1-(4-hydroxyphenyl)ethanone
InChIKey
TXFPEBPIARQUIG-UHFFFAOYSA-N
SMILES
CC(=O)C1=CC=C(C=C1)O
Synonyms (44)
- 4-HAP
- 1-(4-Hydroxyphenyl)ethanone; Paracetamol Imp. E (EP); 4-Hydroxyacetophenone; Paracetamol Impurity E
- Paracetamol EP Impurity E
- (4-Hydroxyphenyl)ethan-1-one
- (4-hydroxyphenyl)ethanone
- 1-(4-Hydroxyphenyl)ethanone
- 1-acetyl-4-hydroxybenzene
- 2o48
- 4'-Hydroxyacetophenone
- 4'-hyroxyacetophenone
- 4-Acetophenol
- 4-Acetylphenol
- 4-Hydroksyacetofenol
- 4-Hydroksyacetofenol [Polish]
- 4-Hydroxyphenyl Methyl Ketone
- 4\'-Hydroxypropiophenone
- AB-131/40179700
- AB00443569-03
- Acetophenone, 4'-hydroxy-
- Acetophenone, p-hydroxy-
- FEMA NO. 4330
- HYDROXYACETOPHENONE, PARA
- Hydroxyacetophenone
- Methyl p-hydroxyphenyl ketone
- P-HYDROXYACETOPHENONE
- Paracetamol Impurity E
- Phenol, p-acetyl-
- Piceol
- USAF KF-15
- p-Acetylphenol
- p-Hydroxacetophenone
- p-Hydroxyphenyl methyl ketone
- p-Oxyacetophenone
- para-Hydroxyacetophenone
- rho-hydroxyacetophenone
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