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CAS 3287-12-5 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 7567815/10/2010

DICETYL THIODIPROPIONATE

Dihexadecyl 3,3'-thiobispropionate

DICETYL THIODIPROPIONATE 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 3287-12-5

CAS 3287-12-5PubChem CID 76783

Dicetyl Thiodipropionate

The CIR Expert Panel concludes that Dilauryl Thiodipropionate, Thiodipropionic Acid, Dicetyl Thiodipropionate, Dimyristyl Thiodipropionate, Distearyl Thiodipropionate, and Ditridecyl Thiodipropionate are safe as cosmetic ingredients in the practices of use and concentration given in this safety assessment when formulated to be non-irritating. — Cosmetic Ingredient Review (CIR)

IUPAC name: hexadecyl 3-(3-hexadecoxy-3-oxopropyl)sulfanylpropanoate

Molecular formula: C38H74O4S
Molecular weight: 627.1 g/mol
Exact mass: 626.53078201 Da
XLogP3: 16.0
Topological polar surface area: 77.9 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 5
Covalent units: 1
Defined stereocentres: 0

Also known as

Propanoic acid, 3,3'-thiobis-, dihexadecyl ester62P18A9Q8NUNII-62P18A9Q8N3,3'-Thiobispropanoic acid, dihexadecyl esterDIHEXADECYL THIODIPROPIONATEEINECS 221-941-5Propanoic acid, 3,3'-thiobis-, 1,1'-dihexadecyl esterDIPALMITYL 3,3'-THIODIPROPIONATE

8 more reported names

PROPIONIC ACID, 3,3'-THIODI-, DIHEXADECYL ESTER1-HEXADECANOL DIESTER WITH 3,3'-THIODIPROPIONIC ACIDRefChem:133000DICETYL THIODIPROPIONATE [INCI]221-941-5dihexadecyl 3,3'-sulfanediyldipropanoateDihexadecyl 3,3'-thiobispropionateIXDBUVCZCLQKJF-UHFFFAOYSA-N

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External database identifiers

EPA DTXSID:DTXSID7062956
PubMed:20634504

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 DICETYL THIODIPROPIONATE

INCI name

DICETYL THIODIPROPIONATE

Description

Dihexadecyl 3,3'-thiobispropionate

Record provenance

Inventory reference: 75678
Imported identity: DICETYL THIODIPROPIONATE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for DICETYL THIODIPROPIONATE

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Key data

CAS

3287-12-5

221-941-5

Restriction

—

Function

ANTIOXIDANT: Inhibiting reactions promoted by oxygen, thus avoiding oxidation and rancidity.

Official EU ingredient-name evidence

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

#8519 · DICETYL THIODIPROPIONATE

Ingredients with overlapping formulation functions

DIBENZOTHIOPHENEANTIOXIDANT

DIBUTYLENE TETRAFURFURALANTIOXIDANT, VISCOSITY CONTROLLING

DICAFFEOYL LYSYL HEXAPEPTIDE-65ANTIMICROBIAL, ANTIOXIDANT, HUMECTANT, SKIN CONDITIONING, SKIN PROTECTING

DICENTRA SPECTABILIS CALLUS CULTURE EXTRACTANTIOXIDANT, HAIR CONDITIONING, HUMECTANT, SKIN PROTECTING

DICTYOPHORA INDUSIATA EXTRACTANTIMICROBIAL, ANTIOXIDANT

DICTYOPTERIS MEMBRANACEA EXTRACTANTIOXIDANT

DICYCLOPENTADIENE/T-BUTYLCRESOL COPOLYMERANTIOXIDANT

DIECKOLANTIOXIDANT, CHELATING, HAIR CONDITIONING, 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 DICETYL THIODIPROPIONATE appears in the CosIng inventory

The CosIng inventory lists DICETYL THIODIPROPIONATE 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.

DICETYL THIODIPROPIONATE 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

DICETYL THIODIPROPIONATE 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, DICETYL THIODIPROPIONATE carries the following function designation(s):

ANTIOXIDANT

CAS 3287-12-5 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 DICETYL THIODIPROPIONATE

This page reproduces the CosIng inventory entry for DICETYL THIODIPROPIONATE 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 DICETYL THIODIPROPIONATE 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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