C11H16O2
180.24 g/mol
Food AdditiveWarning
Phenol, (1,1-dimethylethyl)-4-methoxy-
CAS25013-16-5EC246-563-8
Category
Food Additive
Compound Class
Aromatic
Primary Use
food antioxidant preservative
Butylated hydroxyanisole (BHA) is an antioxidant compound commonly used as a preservative in foods, cosmetics, and topical medications. It has been employed as a food additive since 1947 and is also found in products such as lipstick and eye shadow.
food antioxidant preservativecosmetic preservativepreservative in topical medications
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.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
Relevant lists:California Proposition 65
CAS 25013-16-5
Related Compounds
StrongSame Parent
3-tert-butyl-4-hydroxyanisole
CAS121-00-6
Antioxidant food preservative
ReferenceSame Category
Brilliant Black BN
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Food colorant
ReferenceSame Category
Allura Red AC
CAS25956-17-6
food color additive
ReferenceSame Category
Methylselenocysteine
CAS26046-90-2
nutritional supplement and metabolite
ReferenceSame Category
Ponceau 4R
CAS2611-82-7
Synthetic food colorant
Safety Reference
Warning
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H351Suspected of causing cancer
H361Suspected of damaging fertility or the unborn child
H411Toxic to aquatic life with long lasting effects
H317May cause an allergic skin reaction
H371May cause damage to organs
H401Toxic to aquatic life
H303May be harmful if swallowed
H336May cause drowsiness or dizziness
Regulatory Compliance1
- California Proposition 65USRegulation
Customs Tariff Classification
The international HS code for Phenol, (1,1-dimethylethyl)-4-methoxy- (CAS 25013-16-5) is 2909.50.
HS code (international, 6-digit)
2909.50
EU CN code (8-digit)
2909 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
2-tert-butyl-4-methoxyphenol
InChIKey
MRBKEAMVRSLQPH-UHFFFAOYSA-N
SMILES
CC(C)(C)C1=C(C=CC(=C1)OC)O
Synonyms (61)
- 3-BHA
- BHA
- E-320
- 3-tert-Butyl-4-hydroxyanisole, United States Pharmacopeia (USP)
- 2(3)-t-Butyl-4-hydroxyanisole
- 2-Butyl-4-hydroxyanisole
- 2-t-butyl-4-methoxyphenol
- 2-tert-Bha
- 2-tert-Butyl-4-methoxyphenol
- 3-T-BUTYL-4-HYDROXYANISOLE
- 3-tert-Butyl-4-hydroxyanisole
- 3-tert-Butyl-p-hydroxyanisole
- 3-tert-butyl-4-hydroxyanisol
- 4-Hydroxy-3-tert-butylanisole
- 4-Methoxy-2-tert-butylphenol
- 4-Methoxy-6-tert-butylphenol
- AMIF 72
- Antioxyne B
- Antrancine 12
- BOA (antioxidant)
- Butyl Methoxyphenol
- Butyl hydroxyanisole
- Butyl hydroxyanisole BHA
- Butylated Hydroxyanisole/BHA
- Butylhydroxyanisolum
- Butylohydroksyanizol
- EEC No. E320
- Embanox
- INS NO.320
- Methoxyphenol, Butyl
- Nipantiox 1-F
- Phenol, tert-butyl-4-methoxy-
- Premerge plus
- Protex
- Sustane 1-F
- Tenox BHA
- Tert-butyl-p-hydroxyanisole
- butylhydroxyanisol
- o-tert-Butyl-p-methoxyphenol
- p-methoxy-o-tert-butylphenol
- tert-butylhydroxyanisole