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InventoryRef 3465411/11/2020

ISOHEXADECANE

Isohexadecane is a branched chain aliphatic hydrocarbon with 16 carbons.

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

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.

Chemical identity and properties

PubChem 2D chemical structure for CAS 4390-04-9
CAS 4390-04-9PubChem CID 20414

(+-)-2,2,4,4,6,8,8-Heptamethylnonane

2,2,4,4,6,8,8-heptamethylnonane is a branched alkane that is nonane carrying seven methyl substituents at positions 2, 2, 4, 4, 6, 8 and 8. ChEBI

IUPAC name
2,2,4,4,6,8,8-heptamethylnonane
Molecular formula
C16H34
Molecular weight
226.44 g/mol
Exact mass
226.266051085 Da
XLogP3
7.3
Topological polar surface area
0.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
0
Covalent units
1
Defined stereocentres
0

Also known as

Nonane, 2,2,4,4,6,8,8-heptamethyl-8LP0677305CHEBI:131383RefChem:440687224-506-8isocetaneNSC-771292,2,4,4,6,8,8-heptamethyl-nonane
16 more reported names
CypraneJ125.176GUNII-8LP06773052,4,4,6,8,8-HeptamethylnonaneEINECS 224-506-8Tox21_303743NSC 77129TSH-00535Nonane,2,4,4,6,8,8-heptamethyl-2,2,4,4,6,8,8-?HeptamethylnonaneAS-60782CAS-4390-04-9CS-0204778H03652,2,4,4,6,8,8-Heptamethylnonane, 98%EC 224-506-8
External database identifiers

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 ISOHEXADECANE

INCI name

ISOHEXADECANE

Description

Isohexadecane is a branched chain aliphatic hydrocarbon with 16 carbons.

Record provenance

Inventory reference
34654
Imported identity
ISOHEXADECANE
Source update
11/11/2020
European Commission CosIng source notes

Key data

CAS
4390-04-9, 60908-77-2, 93685-80-4
EC
224-506-8, -, 297-628-2
Restriction
Function
SKIN CONDITIONING - EMOLLIENT
Acting as lubricants on the skin surface providing the skin with a soft and smooth appearance.
SOLVENT
Dissolving other components of cosmetics. Solvents are usually liquids (aqueous and nonaqueous).

Official EU ingredient-name evidence

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

Ingredients with overlapping formulation functions

Additional official and scientific sources

11 external databases to check this identity in

How ISOHEXADECANE appears in the CosIng inventory

The CosIng inventory lists ISOHEXADECANE 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.

ISOHEXADECANE is also tagged with 2 cosmetic functions 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

ISOHEXADECANE 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, ISOHEXADECANE carries the following function designation(s):

CAS 4390-04-9, 60908-77-2, 93685-80-4 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.

Use the INCI Checker to screen a full ingredient list across selected markets, or compare this substance across all supported market datasets.

Source note for ISOHEXADECANE

This page reproduces the CosIng inventory entry for ISOHEXADECANE 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 ISOHEXADECANE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

Tools & next steps

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