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CAS 25395-66-8 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 3200815/10/2010

ASCORBYL STEARATE

(Stearoyloxy)-L-ascorbic acid

ASCORBYL STEARATE 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 25395-66-8

CAS 25395-66-8PubChem CID 54725318

Ascorbyl Stearate

Ascorbyl stearate is a fatty acid ester. — ChEBI

IUPAC name: [(2S)-2-[(2R)-3,4-dihydroxy-5-oxo-2H-furan-2-yl]-2-hydroxyethyl] octadecanoate

Molecular formula: C24H42O7
Molecular weight: 442.6 g/mol
Exact mass: 442.29305367 Da
XLogP3: 7.3
Topological polar surface area: 113.0 Å²
Hydrogen-bond donors: 3
Hydrogen-bond acceptors: 7
Covalent units: 1
Defined stereocentres: 2

Also known as

L-Ascorbic acid, 6-octadecanoateL-Ascorbic acid monostearatevitamin c stearateL-ASCORBYL 6-OCTADECANOATEINS NO.305E-305INS-305ASCORBYL STEARATE [USP-RS]

16 more reported names

STEARIC ACID, 6-ESTER WITH L-ASCORBIC ACIDASCORBYL STEARATE (USP-RS)L-Ascorbic acid, 6-octadecanoate (9CI)RefChem:560185ASCORBYL STEARATE [INCI]246-944-92-(3,4-dihydroxy-5-oxo-2,5-dihydrofuran-2-yl)-2-hydroxyethyl octadecanoateL-Ascorbyl 6-Stearate6-O-Stearoyl-L-ascorbic AcidL-Ascorbic acid 6-stearate(S)-2-((R)-3,4-dihydroxy-5-oxo-2,5-dihydrofuran-2-yl)-2-hydroxyethyl stearateL-Ascorbicacid6-stearateL-Ascorbyl-6-stearateL-Stearoyl-6-ascorbic Acid7Z1QT341US(2S)-2-[(2R)-3,4-dihydroxy-5-oxo-2,5-dihydrofuran-2-yl]-2-hydroxyethyl octadecanoate

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External database identifiers

ChEBI:CHEBI:138822
ChEMBL:CHEMBL218804
EPA DTXSID:DTXSID00894148

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 ASCORBYL STEARATE

INCI name

ASCORBYL STEARATE

Description

(Stearoyloxy)-L-ascorbic acid

Record provenance

Inventory reference: 32008
Imported identity: ASCORBYL STEARATE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for ASCORBYL STEARATE

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Key data

CAS

25395-66-8

246-944-9

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.

#2435 · ASCORBYL STEARATE

Ingredients with overlapping formulation functions

ASCORBYL METHYLSILANOL PECTINATEANTIOXIDANT, VISCOSITY CONTROLLING

ASCORBYL PALMITATEANTIOXIDANT, FRAGRANCE

ASCORBYL PHOSPHATE SUCCINOYL PENTAPEPTIDE-12ANTIOXIDANT

ASCORBYL RETINOATEANTIOXIDANT

ASCORBYL SUCCINOYL TETRAPEPTIDE-21ANTIOXIDANT, SKIN CONDITIONING

ASCORBYL TETRAISOPALMITATEANTIOXIDANT, SKIN CONDITIONING - EMOLLIENT

ASCORBYL TOCOPHERYL MALEATEANTIOXIDANT, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

ASCORBYLMETHYLCARBONYL PENTAPEPTIDE-72 TRI-T-BUTYL TRYPTOPHANAMIDEANTIOXIDANT; SKIN PROTECTING; SKIN CONDITIONING - MISCELLANEOUS

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 ASCORBYL STEARATE appears in the CosIng inventory

The CosIng inventory lists ASCORBYL STEARATE 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.

ASCORBYL STEARATE 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

ASCORBYL STEARATE 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, ASCORBYL STEARATE carries the following function designation(s):

ANTIOXIDANT

CAS 25395-66-8 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 ASCORBYL STEARATE

This page reproduces the CosIng inventory entry for ASCORBYL STEARATE 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 ASCORBYL STEARATE 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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