Official EU label nameGlossary entry 16562

METHYL PERFLUOROBUTYL ETHER

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

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Resolved identifiers

Resolved substance identity

CAS:163702-07-6

Ingredient index records:

METHYL PERFLUOROBUTYL ETHER

Cosmetic functions: SOLVENT, VISCOSITY CONTROLLING

1,1,1,2,3,3,3,4,4-nonafluoro-4-methoxybutane

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1 matched or reported name

METHYL PERFLUOROBUTYL ETHER

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name METHYL PERFLUOROBUTYL ETHER.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 163702-07-6

CAS 163702-07-6PubChem CID 164514

Methyl perfluorobutyl ether

IUPAC name: 1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxybutane

Molecular formula: C5H3F9O
Molecular weight: 250.06 g/mol
Exact mass: 250.00401817 Da
XLogP3: 3.3
Topological polar surface area: 9.2 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 10
Covalent units: 1
Defined stereocentres: 0

Also known as

Methyl Nonafluorobutyl EtherButane, 1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxy-Nonafluorobutyl methyl ether(perfluorobutoxy)methaneH637A50B7U1-methoxynonafluorobutaneMETHYL 1,1,2,2,3,3,4,4,4-NONAFLUOROBUTYL ETHERRefChem:818025

16 more reported names

METHYL PERFLUOROBUTYL ETHER [INCI]Butane, 1,1,1,2,2,3,3,4,4nonafluoro4methoxyFractionated and Column Treated HFE7100 from Methylbutyrate ECF. F12429 (Intermediate)605-339-3829-015-8METHOXYPERFLUOROBUTANEPerfluorobutyl Methyl EtherUNII-H637A50B7U1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxy-butaneCF3CF2CF2CF2OCH3C4F9OCH3FD2030Novec(R) HFE-7100 Engineered FluidHFE-449s1 (7100)Novec(R) HFE-7100DL Engineered FluidAS-48915

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External database identifiers

ChEMBL:CHEMBL500823
EPA DTXSID:DTXSID4073120
PubMed:22592967
PubMed:18851453
PubMed:15921925

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Additional authoritative substance research

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal US EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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