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CAS 9028-56-2 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 5685115/10/2010

HYDROXYSTEROID OXIDOREDUCTASE

3-Hydroxysteroid:oxidoreductase

HYDROXYSTEROID OXIDOREDUCTASE 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.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 9028-56-2

CAS 9028-56-2PubChem CID 168009917

Dehydrogenase, 3alpha-hydroxy steroid

Molecular formula: C50H38O4S2
Molecular weight: 767.0 g/mol
Exact mass: 766.22115204 Da
XLogP3: 10.9
Topological polar surface area: 125.0 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 6
Covalent units: 1
Defined stereocentres: 0

Also known as

RefChem:585642EINECS 232-839-5232-839-53|A-hydroxysteroid dehydrogenaseWZWONBSCKCYGIW-UHFFFAOYSA-NCID 164759757

Open full PubChem record PubChem annotations 3D structure image

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 HYDROXYSTEROID OXIDOREDUCTASE

INCI name

HYDROXYSTEROID OXIDOREDUCTASE

Description

3-Hydroxysteroid:oxidoreductase

Record provenance

Inventory reference: 56851
Imported identity: HYDROXYSTEROID OXIDOREDUCTASE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for HYDROXYSTEROID OXIDOREDUCTASE

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Key data

CAS

9028-56-2

232-839-5

Restriction

—

Function

SKIN CONDITIONING: Maintaining the skin in good condition.

Official EU ingredient-name evidence

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

#13420 · HYDROXYSTEROID OXIDOREDUCTASE

Ingredients with overlapping formulation functions

HYDROXYPROPYLTRISILOXYL IPDI/PEG-23 COPOLYMERBINDING, CLEANSING, SKIN CONDITIONING

HYDROXYRESVERATROLBLEACHING, SKIN CONDITIONING, SKIN PROTECTING

HYDROXYSATTABACINSKIN CONDITIONING

HYDROXYSTEARIC/LINOLENIC/OLEIC POLYGLYCERIDESBINDING, EMULSION STABILISING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

HYDROXYTRYPTOPHANSKIN CONDITIONING

HYDROXYTYROSOLBLEACHING, SKIN CONDITIONING

HYDROXYUNDECANOIC ACIDSKIN CONDITIONING

HYGROPHILA RINGENS SEEDHUMECTANT, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SKIN PROTECTING

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 HYDROXYSTEROID OXIDOREDUCTASE appears in the CosIng inventory

The CosIng inventory lists HYDROXYSTEROID OXIDOREDUCTASE 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.

HYDROXYSTEROID OXIDOREDUCTASE 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

HYDROXYSTEROID OXIDOREDUCTASE 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, HYDROXYSTEROID OXIDOREDUCTASE carries the following function designation(s):

SKIN CONDITIONING

CAS 9028-56-2 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 HYDROXYSTEROID OXIDOREDUCTASE

This page reproduces the CosIng inventory entry for HYDROXYSTEROID OXIDOREDUCTASE 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 HYDROXYSTEROID OXIDOREDUCTASE 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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