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CAS 139-44-6 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 3871821/11/2016

TRIHYDROXYSTEARIN

1,2,3-Propanetriyl tris(12-hydroxyoctadecanoate)

TRIHYDROXYSTEARIN 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 139-44-6

CAS 139-44-6PubChem CID 25100

Trihydroxystearin

IUPAC name: 2,3-bis(12-hydroxyoctadecanoyloxy)propyl 12-hydroxyoctadecanoate

Molecular formula: C57H110O9
Molecular weight: 939.5 g/mol
Exact mass: 938.81498508 Da
XLogP3: 19.5
Topological polar surface area: 140.0 Å²
Hydrogen-bond donors: 3
Hydrogen-bond acceptors: 9
Covalent units: 1
Defined stereocentres: 0

Also known as

1,2,3-Propanetriyl tris(12-hydroxyoctadecanoate)Glyceryl tri(12-hydroxystearate)Octadecanoic acid, 12-hydroxy-, 1,2,3-propanetriyl esterCUTINA BWNSC-238906YD7896S3Octadecanoic acid, 12-hydroxy-, 1,1',1''-(1,2,3-propanetriyl) esterRefChem:1100439

16 more reported names

205-364-6Thixin RGlyceryl tris(12-hydroxystearate)Thixcin EThixcin R12-Hydroxystearic acid triglyceridePropane-1,2,3-triyl tris(12-hydroxyoctadecanoate)Tri-12-hydroxystearinGlycerol tris(12-hydroxystearate)Trixcin RTixcin ROctadecanoic acid, 12-hydroxy-, triester with glycerol12-Hydroxyoctadecanoic acid, glyceryl esterOlio di ricino idrogenato [Italian]12-Hydroxyoctadecanoic acid, triester with glycerolNSC2389

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External database identifiers

EPA DTXSID:DTXSID3051701

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 TRIHYDROXYSTEARIN

INCI name

TRIHYDROXYSTEARIN

Description

1,2,3-Propanetriyl tris(12-hydroxyoctadecanoate)

Record provenance

Inventory reference: 38718
Imported identity: TRIHYDROXYSTEARIN
Source update: 21/11/2016

European Commission CosIng source notes

Annex records for TRIHYDROXYSTEARIN

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Key data

CAS

139-44-6

205-364-6

Restriction

—

Function

SKIN CONDITIONING: Maintaining the skin in good condition.
VISCOSITY CONTROLLING: Increasing or decreasing the viscosity (thickness) of cosmetics.

Official EU ingredient-name evidence

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

#29225 · TRIHYDROXYSTEARIN

Ingredients with overlapping formulation functions

TRIFLUOROPROPYL DIMETHICONE/VINYL TRIFLUOROPROPYL DIMETHICONE/SILSESQUIOXANE CR…VISCOSITY CONTROLLING

TRIGONELLA FOENUM-GRAECUM SEED POWDERVISCOSITY CONTROLLING

TRIHEPTANOINSKIN CONDITIONING, SURFACTANT - CLEANSING, VISCOSITY CONTROLLING

TRIHEPTYLUNDECANOINREFATTING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, VISCOSITY CONTROLLING

TRIISONONANOINSKIN CONDITIONING, VISCOSITY CONTROLLING

TRIISOPALMITINSKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, VISCOSITY CONTROLLING

TRIISOSTEARINSKIN CONDITIONING, VISCOSITY CONTROLLING

TRIISOSTEARYL TRILINOLEATESKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, VISCOSITY CONTROLLING

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 TRIHYDROXYSTEARIN appears in the CosIng inventory

The CosIng inventory lists TRIHYDROXYSTEARIN 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.

TRIHYDROXYSTEARIN 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

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

CAS 139-44-6 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 TRIHYDROXYSTEARIN

This page reproduces the CosIng inventory entry for TRIHYDROXYSTEARIN 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 TRIHYDROXYSTEARIN 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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