Is OCTANEDIOL safe to use in EU cosmetics?

OCTANEDIOL is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Always verify against the current official CosIng database before formulating.

What other records share CAS 629-41-4?

CAS 629-41-4 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.

How do I check if my formula contains OCTANEDIOL?

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

InventoryRef 8380015/10/2010

OCTANEDIOL

Octan-1,8-diol

OCTANEDIOL 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 629-41-4

CAS 629-41-4PubChem CID 69420

1,8-Octanediol

Octane-1,8-diol is an octanediol. — ChEBI

IUPAC name: octane-1,8-diol

Molecular formula: C8H18O2
Molecular weight: 146.23 g/mol
Exact mass: 146.130679813 Da
XLogP3: 1.4
Topological polar surface area: 40.5 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

Octanediol1,8-DihydroxyoctaneUNII-806K32R50ZEINECS 211-090-8806K32R50ZORISTAR OTD.ALPHA.,.OMEGA.-OCTANEDIOLNSC 81228

16 more reported names

NSC-81228.OMEGA.-OCTANEDIOLCHEBI:446301,8-OCTAMETHYLENE GLYCOLOMEGA-OCTANEDIOLRefChem:73781OCTANEDIOL [INCI]ALPHA,OMEGA-OCTANEDIOLCHEBI:37872OEIJHBUUFURJLI-UHFFFAOYSA-NOctamethylene glycolOctan-1,8-diolAC-662CCG-40427CS-W018224O0024

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:44630
EPA DTXSID:DTXSID2022416
PubMed:22685473
PubMed:22649385
PubMed:22577255
PubMed:22523593
PubMed:22213479
PubMed:22113370
PubMed:22109350
PubMed:22016604
PubMed:21900319
PubMed:21683607
PubMed:21388989
PubMed:20640490

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 OCTANEDIOL

INCI name

OCTANEDIOL

Description

Octan-1,8-diol

Record provenance

Inventory reference: 83800
Imported identity: OCTANEDIOL
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for OCTANEDIOL

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Key data

CAS

629-41-4

211-090-8

Restriction

—

Function

PLASTICISER: Softening and making supple synthetic polymers that otherwise could not be easily deformed, spread or worked out.

Official EU ingredient-name evidence

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

#17743 · OCTANEDIOL

Ingredients with overlapping formulation functions

METHYLBUTENE/PIPERYLENE COPOLYMERPLASTICISER

N-ETHYLTOSYLAMIDE/EPOXY RESINFILM FORMING, PLASTICISER

NEOPENTYL GLYCOLPLASTICISER, SOLVENT

NEOPENTYL GLYCOL DIPELARGONATEPLASTICISER, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SOLVENT

OCTYLDODECYL DILINOLEIC ACID/PROPANEDIOL COPOLYMERFILM FORMING, PLASTICISER, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, VISCOSITY CONTROLLING

OXIDIZED TALL OIL ACIDS/NEOPENTYL GLYCOL COPOLYMERFILM FORMING, PLASTICISER, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SURFACTANT - CLEANSING

PEG-4 DIACRYLATEPLASTICISER

PEG-4 DISTEARYL ETHERHAIR CONDITIONING, OPACIFYING, PLASTICISER, SKIN CONDITIONING

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 OCTANEDIOL appears in the CosIng inventory

The CosIng inventory lists OCTANEDIOL 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.

OCTANEDIOL 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

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

PLASTICISER

CAS 629-41-4 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.

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Source note for OCTANEDIOL

This page reproduces the CosIng inventory entry for OCTANEDIOL 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 OCTANEDIOL 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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Tools & next steps

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