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CAS 50285-18-2 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 8810111/09/2018

PERFLUORO DIMETHYLETHYLPENTANE

Perfluoro Dimethylethylpentane is the organic compound.

PERFLUORO DIMETHYLETHYLPENTANE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 50285-18-2

CAS 50285-18-2PubChem CID 3016513

Perfluoro dimethylethylpentane

IUPAC name: 1,1,1,2,2,3,4,5,5,5-decafluoro-3-(1,1,1,2,3,3,3-heptafluoropropan-2-yl)-4-(trifluoromethyl)pentane

Molecular formula: C9F20
Molecular weight: 488.06 g/mol
Exact mass: 487.9680632 Da
XLogP3: 7.1
Topological polar surface area: 0.0 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 20
Covalent units: 1
Defined stereocentres: 0

Also known as

UNII-M7RR804S1GEINECS 256-522-6M7RR804S1G1,1,1,2,2,3,4,5,5,5-DECAFLUORO-3-[1,2,2,2-TETRAFLUORO-1-(TRIFLUOROMETHYL)ETHYL]-4-(TRIFLUOROMETHYL)PENTANEFIFLOW1,1,1,2,2,3,4,5,5,5-Decafluoro-3-(1,2,2,2-tetrafluoro-1-(trifluoromethyl)ethyl)-4-(trifluoromethyl)pentanePERFLUORO(2-METHYL-3-ISOPROPYLPENTANE)PERFLUORO(3-ISOPROPYL-2-METHYLPENTANE)

9 more reported names

PERFLUORO(2,4-DIMETHYL-3-ETHYLPENTANE)Pentane, 1,1,1,2,2,3,4,5,5,5-decafluoro-3-(1,2,2,2-tetrafluoro-1-(trifluoromethyl)ethyl)-4-(trifluoromethyl)-RefChem:171632PERFLUORO DIMETHYLETHYLPENTANE [INCI]perfluoro-2,4-dimethyl-3-ethylpentanePerfluoro-2,4-dimethyl-3-ethyl pentane1,1,1,2,2,3,4,5,5,5-Decafluoro-3-[1,2,2,2-Tetrafluoro-1-(Trifluoromethyl)Ethyl]-4-(Trifluoromethyl)-Pentaneperfluoro-2-methyl-3-isopropylpentanePerfluoro(2,4-dimethyl-3-ethylpentane) : Perfluoro-2,4-dimethylheptane (approx. 70%:30%)

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID50198289

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

Inventory details for PERFLUORO DIMETHYLETHYLPENTANE

INCI name

PERFLUORO DIMETHYLETHYLPENTANE

Description

Perfluoro Dimethylethylpentane is the organic compound.

Record provenance

Inventory reference: 88101
Imported identity: PERFLUORO DIMETHYLETHYLPENTANE
Source update: 11/09/2018

European Commission CosIng source notes

Annex records for PERFLUORO DIMETHYLETHYLPENTANE

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Key data

CAS

50285-18-2

256-522-6

Restriction

—

Function

NOT REPORTED: No function currently reported.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#20456 · PERFLUORO DIMETHYLETHYLPENTANE

Ingredients with overlapping formulation functions

PENTAPEPTIDE-70NOT REPORTED

PENTAPEPTIDE-71NOT REPORTED

PENTAPEPTIDE-72NOT REPORTED

PENTAPEPTIDE-98NOT REPORTED

PERFLUOROPROPANENOT REPORTED

PERFLUOROPROPYLENENOT REPORTED

PHALAENOPSIS APHRODITE EMBRYO EXTRACTNOT REPORTED

PHENOLPHTHALEINNOT REPORTED

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox 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

How PERFLUORO DIMETHYLETHYLPENTANE appears in the CosIng inventory

The CosIng inventory lists PERFLUORO DIMETHYLETHYLPENTANE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

PERFLUORO DIMETHYLETHYLPENTANE is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

PERFLUORO DIMETHYLETHYLPENTANE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, PERFLUORO DIMETHYLETHYLPENTANE carries the following function designation(s):

NOT REPORTED

CAS 50285-18-2 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Source note for PERFLUORO DIMETHYLETHYLPENTANE

This page reproduces the CosIng inventory entry for PERFLUORO DIMETHYLETHYLPENTANE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research PERFLUORO DIMETHYLETHYLPENTANE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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