Official EU label nameGlossary entry 30323

ZINC HYDROXIDE

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

0 markets with evidence

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Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:20427-58-1

EC:243-814-3

Ingredient index records:

ZINC HYDROXIDE

Cosmetic functions: ABSORBENT

Zinc hydroxide (Zn(OH)2)

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1 matched or reported name

ZINC HYDROXIDE

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name ZINC HYDROXIDE.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 20427-58-1

CAS 20427-58-1PubChem CID 9812759

Zinc Hydroxide

Zinc hydroxide is a hydroxide of zinc, with the chemical formula Zn(OH)2. It is used in surgical dressings. Zinc is a metallic element with the atomic number 30. It is found in nature most often as the mineral sphalerite. It also occurs naturally as 3 rare minerals: wн_lfingite (orthorhombic), ashoverite and sweetite (both tetragonal).Though excess zinc in harmful, in smaller amounts it is an essential element for life, as it is a cofactor for over 300 enzymes and is found in just as many transcription factors. (L48, L49, L68) — Toxin and Toxin Target Database (T3DB)

IUPAC name: zinc dihydroxide

Molecular formula: H2O2Zn
Molecular weight: 99.4 g/mol
Exact mass: 97.934621 Da
Topological polar surface area: 2.0 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 2
Covalent units: 3
Defined stereocentres: 0

Also known as

OXK3V8KJ7LRefChem:904951zinc(2+) ion dihydroxide243-814-3Zinc hydroxide (Zn(OH)2)ZINCHYDROXIDEO2ZnZinc hydroxide [VANDF]

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External database identifiers

EPA DTXSID:DTXSID7042516

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Additional authoritative substance research

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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 US EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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