C16H22O4
278.34 g/mol
Industrial ChemicalDanger
Dibutyl phthalate
CAS84-74-2EC201-557-4
Category
Industrial Chemical
Compound Class
Ester
Primary Use
plasticizer for flexible plastics
Dibutyl phthalate is a manufactured chemical that does not occur naturally. It is an odorless, oily liquid, colorless to faint yellow, and is used primarily to make plastics more flexible.
plasticizer for flexible plasticscomponent in carpet backings, paints, glue, and insect repellentsused in hair spray, nail polish, and rocket fuel
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.
CAS 84-74-2
Related Compounds
SimilarStructure SimilarSimilarity 0.80
Dibutoxyethylphthalate
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Plasticizer for PVC and other resins
ReferenceSame Category
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industrial intermediate for dyes and pigments
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Free radical type I photoinitiator
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Chemical intermediate for synthesis
ReferenceSame Category
3-bromo-3'-chloro-1,1'-biphenyl
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organic synthesis intermediate
Referencestereoisomer of
Dibutyl (²H₄)benzene-1,2-dicarboxylate
CAS93952-11-5
research compound
Safety Reference
Danger
H400Very toxic to aquatic life
H360May damage fertility or the unborn child
H411Toxic to aquatic life with long lasting effects
H317May cause an allergic skin reaction
H335May cause respiratory irritation
H372Causes damage to organs through prolonged or repeated exposure
H370Causes damage to organs
H373May cause damage to organs through prolonged or repeated exposure
H303May be harmful if swallowed
H316Causes mild skin irritation
H320Causes eye irritation
H361Suspected of damaging fertility or the unborn child
Customs Tariff Classification
The international HS code for Dibutyl phthalate (CAS 84-74-2) is 2917.34.
HS code (international, 6-digit)
2917.34
EU CN code (8-digit)
2917 34 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
dibutyl benzene-1,2-dicarboxylate
InChIKey
DOIRQSBPFJWKBE-UHFFFAOYSA-N
SMILES
CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC
Synonyms (70)
- Dibutyl phthalate, European Pharmacopoeia (EP)
- Dibutyl phthalate, United States Pharmacopeia (USP)
- Araldite 502
- Bis-N-butyl phthalate
- Bufa
- Butyl phthalate
- Celluflex DPB
- Corflex 440
- DBP (ester)
- DIBUTYL PHTHALATE [MART.]
- Di(1-butyl) phthalate
- Di-n-butyl phthalate
- Di-n-butylorthophthalate
- Dibutyl phthalate (Standard)
- Dibutyl phthalate CRS
- Dibutyl-o-phthalate
- Dibutyll phthalate
- Dibutylphthatlate
- Elaol
- Ergoplast FDB
- Ersoplast FDA
- Genoplast B
- Hatco dbp
- Hatcol DBP
- Hexaplas M/B
- Kodaflex DBP
- Monocizer dbp
- Morflex 240
- O-buthyl phthalate
- Palatinol C
- Palatinol DBP
- Phthalate, Butyl
- Phthalate, Dibutyl
- Phthalate, di-n-butyl
- Phthalic acid, dibutyl ester
- Plasthall dbp
- RAPIDCELLtrade markP
- RC Plasticizer DBP
- Ruifeng vp 201
- Staflex DBP
- Uniflex DBP
- Unimoll DB
- Uniplex 150
- Vestinol c
- Witcizer 300
- di-n-butyl phthalate (DBuP)
- dibutyl phthalate
- n-Butyl phthalate
- nutyl phthalate
- ortho-Dibutyl phthalate