C4HF7O2
214.04 g/mol
Industrial ChemicalDanger
Heptafluorobutyric acid
CAS375-22-4EC206-786-3
Category
Industrial Chemical
Compound Class
Halocarbon
Primary Use
Surfactant and environmental contaminant
Heptafluorobutyric acid is a perfluorinated carboxylic acid that functions as a surfactant and is recognized as an environmental contaminant. It is used as a chromatographic reagent and is a xenobiotic substance detected in various consumer products and industrial materials.
detected in circuit boardsdetected in leatherdetected in fire-fighter textiles
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 0.82
Perfluoropentanoic acid
CAS2706-90-3
Perfluorinated carboxylic acid intermediate
SimilarStructure SimilarSimilarity 0.78
Perfluoroheptanoic acid
CAS375-85-9
Non-polymer PFAS industrial intermediate
SimilarStructure SimilarSimilarity 0.78
Perfluorohexanoic acid
CAS307-24-4
not applicable
SimilarStructure SimilarSimilarity 0.78
Perfluorooctanoic acid
CAS335-67-1
surfactant for fire-fighting foam
ReferenceSame Category
1,4-Diiodooctafluorobutane
CAS375-50-8
Fluorinated building block for synthesis
ReferenceSame Category
Perfluorobutanesulfonyl fluoride
CAS375-72-4
Perfluorinated sulfonyl fluoride intermediate
ReferenceSame Category
3,6-Di-tert-butylcarbazole
CAS37500-95-1
electronic material intermediate
ReferenceSame Category
4,4'-Bis(methoxymethyl)-1,1'-biphenyl
CAS3753-18-2
chemical intermediate
Safety Reference
Danger
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Heptafluorobutyric acid (CAS 375-22-4) is 2915.90.
HS code (international, 6-digit)
2915.90
EU CN code (8-digit)
2915 90 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
2,2,3,3,4,4,4-heptafluorobutanoic acid
InChIKey
YPJUNDFVDDCYIH-UHFFFAOYSA-N
SMILES
C(=O)(C(C(C(F)(F)F)(F)F)(F)F)O
Synonyms (26)
- HFBA
- PFBA
- BUTYRIC ACID, HEPTAFLUORO-
- Butanoic acid, heptafluoro-
- FLUORAD FC 23
- Heptafluoro-1-butanoic acid
- Heptafluoro-n-butyric acid
- Heptafluorobutanoic acid
- Heptafluorobutyric acid
- Heptafluorobutyric acidHFBA
- Kyselina heptafluormaselna
- PFBA perfluorobutanoic acid
- Perfluoro-n-butanoic acid
- Perfluorobutanoic acid
- Perfluorobutyric acid
- heptafluorobutanoatato
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