C11H14O3
194.23 g/mol
Food AdditiveDanger
Butyl 4-hydroxybenzoate
CAS94-26-8EC202-318-7
Category
Food Additive
Compound Class
Ester
Primary Use
preservative in cosmetics and foods
Butyl 4-hydroxybenzoate is an odorless white crystalline powder that is tasteless but numbs the tongue, with aqueous solutions being slightly acidic to litmus. It is widely used as a preservative in cosmetics and foods due to its antifungal properties.
antifungal agentpreservative in cosmeticsfood preservative
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
SimilarStructure SimilarSimilarity 0.79
Propylparaben
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antimicrobial preservative in foods and cosmetics
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Flavoring agent and insecticide
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Food acidulant and flavoring agent
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emulsifier and dietary supplement
ReferenceSame Category
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emulsifier in food and feed
Referencestereoisomer of
N-butyl 4-hydroxybenzoate-2,3,5,6-d4
CAS1219798-67-0
cosmetic preservative
Safety Reference
Danger
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H335May cause respiratory irritation
H412Harmful to aquatic life with long lasting effects
Regulatory Compliance1
- EU REACH SVHCEURegulation
Customs Tariff Classification
The international HS code for Butyl 4-hydroxybenzoate (CAS 94-26-8) is 2918.29.
HS code (international, 6-digit)
2918.29
EU CN code (8-digit)
2918 29 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
butyl 4-hydroxybenzoate
InChIKey
QFOHBWFCKVYLES-UHFFFAOYSA-N
SMILES
CCCCOC(=O)C1=CC=C(C=C1)O
Synonyms (54)
- SPF
- Butyl 4-Hydroxybenzoate; Propyl Parahydroxybenzoate EP Impurity D
- Sodium ethyl parahydroxybenzoate EP Impurity D; Propyl Parahydroxybenzoate EP Impurity D
- 2-butyl-4-hydroxybenzoic acid
- 4-(Butoxycarbonyl)phenol
- 4mg9
- Aseptoform butyl
- BUTYL HYDROXYBENZOATE [MART.]
- Butoben
- Butyl 4-hydroxybenzoate
- Butyl butex
- Butyl chemosept
- Butyl hydroxybenzoate
- Butyl p-hydroxybenzoate
- Butyl paraben
- Butyl parahydroxybenzoate
- Butyl parahydroxybenzoate CRS
- Butyl parasept
- Butyl tegosept
- Butylparaben (NF)
- Butylparaben (Standard)
- Butylparaben (TN)
- Caswell No. 130A
- FEMA 2203
- Lexgard B
- Methyldopa Impurity 3
- Nipabutyl
- Preserval B
- Solbrol B
- Tegosept B
- Tegosept Butyl
- n-Butyl hydroxybenzoate
- n-Butyl p-hydroxybenzoate
- n-Butyl parahydroxybenzoate
- n-Butyl-paraben
- n-butyl 4-hydroxybenzoate
- p-Hydroxy butyl benzoate
- p-Hydroxybenzoic butyl ester
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