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Annex IV Entry 150 18/10/2010

Aluminium, zinc, magnesium and calcium stearates

ALUMINUM STEARATE / ZINC STEARATE / MAGNESIUM STEARATE / CALCIUM STEARATE

Aluminium, zinc, magnesium and calcium stearates appears in Annex IV as a positive-list colorant entry for EU cosmetics.

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Permitted colorant— Annex IV, EU Regulation 1223/2009
Entry: 150

Chemical identity and properties

PubChem 2D chemical structure for CAS 1592-23-0
CAS 1592-23-0PubChem CID 15324

Calcium Stearate

Calcium stearate is an organic calcium salt of stearic acid. It is a component of some lubricants and surfactants. It contains an octadecanoate. — ChEBI

IUPAC name
calcium bis(octadecanoate)
Molecular formula
C36H70CaO4
Molecular weight
607.0 g/mol
Exact mass
606.4900016 Da
Topological polar surface area
80.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
4
Covalent units
3
Defined stereocentres
0

Also known as

Calcium octadecanoateOctadecanoic acid, calcium saltCalcium distearateCalstarFlexichemAquacalFlexichem CSStavinor 30
16 more reported names
Stearic acid, calcium saltCalcium bis(stearate)Nopcote C 104Witco G 339SG 339SG 339 S776XM7047LCHEBI:190296RefChem:917891216-472-8calcium;octadecanoateStearic acid calcium saltcalcium dioctadecanoate8000-75-7CALCIUMSTEARATECalcium stearate [JAN]
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External database identifiers

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

PubChem 2D chemical structure for CAS 557-04-0
CAS 557-04-0PubChem CID 11177

Magnesium Stearate

Magnesium distearate is an organic magnesium salt and a magnesium salt. — ChEBI

IUPAC name
magnesium bis(octadecanoate)
Molecular formula
C36H70MgO4
Molecular weight
591.2 g/mol
Exact mass
590.5124524 Da
Topological polar surface area
80.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
4
Covalent units
3
Defined stereocentres
0

Also known as

Magnesium distearateMagnesium octadecanoateDibasic magnesium stearateOctadecanoic acid, magnesium saltSynpro 90Stearic acid, magnesium saltPetrac MG 20NFMagnesium stearate g
16 more reported names
Synpro Magnesium Stearate 90Magnesii stearasNP 1500SM 1000Octadecanoic acid, magnesium salt (2:1)CHEBI:9254DAYCLINGRefChem:5973209-150-3magnesium(ii) stearateC36H70MgO4magnesium;octadecanoatemagnesium dioctadecanoateNS-M (salt)SM-PMagnesium stearate [JAN]
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External database identifiers

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

PubChem 2D chemical structure for CAS 557-05-1
CAS 557-05-1PubChem CID 11178

Zinc Stearate

Zinc stearate is a white, hydrophobic powder with a slight, characteristic odor. Mp: 130 °C. Density: 1.1 g cm-3. Insoluble in water, ethyl alcohol and diethyl ether. Soluble in acids. Non-toxic. In technical grades, the percentage of zinc may vary according to the intended use. Products with less than the theoretical amount of zinc are more acidic. — CAMEO Chemicals

IUPAC name
zinc bis(octadecanoate)
Molecular formula
C36H70O4Zn
Molecular weight
632.3 g/mol
Exact mass
630.456552 Da
Topological polar surface area
80.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
4
Covalent units
3
Defined stereocentres
0

Also known as

Zinc octadecanoateZinc distearateZn StearateOctadecanoic acid, zinc saltHydenseHytechMatheCoad
16 more reported names
Zinci stearasZink distearatUnichem ZSZincum stearinicumStearic acid, zinc saltDermaroneMetallacSynpro stearateDibasic zinc stearatePetrac ZN-41Caswell No. 926Talculin ZStavinor ZN-EWitco Zinc Stearate USPMetasap 576Zinc stearate W. S
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External database identifiers

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

PubChem 2D chemical structure for CAS 7047-84-9
CAS 7047-84-9PubChem CID 10246924

Aluminum Monostearate

Aluminium monostearate is a salt of stearic acid and aluminium with the molecular formula Al(OH)2C18H35O2. Also known as dihydroxyaluminium or dihydroxy(stearato)aluminium, it is used to form gels in the packaging of pharmaceuticals and in the preparation of colors for cosmetics. While considered safe for use, extensive usage may result in aluminum accumulation. — DrugBank

IUPAC name
aluminum;octadecanoate;dihydroxide
Molecular formula
C18H37AlO4
Molecular weight
344.5 g/mol
Exact mass
344.2507231 Da
Topological polar surface area
42.1 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
4
Covalent units
4
Defined stereocentres
0

Also known as

Aluminum, monostearateAluminum stearate 300Dibasic aluminium stearateAluminium, dihydroxide stearateCHEBI:31197P9BC99461EAluminum, dihydroxy(octadecanoato-O-)-RefChem:556666
16 more reported names
ALUMINUM MONOPALMITOSTEARATE(octadecanoyloxy)alumanylidene dihydrate3A60N020Z7230-325-5Aluminium monostearateAluminum, dihydroxide stearateDibasic aluminum stearateDihydroxido(octadecanoato)aluminiumDihydroxy(stearato)aluminiumDihydroxy(stearato)aluminumDihydroxyaluminium stearate, pureDihydroxyaluminum stearatedihydroxy(stearoyloxy)aluminumAluminum dihydroxide stearateAluminum monostearate [JAN]C18H37AlO4
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Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Record details

Colour index or glossary

ALUMINUM STEARATE / ZINC STEARATE / MAGNESIUM STEARATE / CALCIUM STEARATE

Chemical name

Aluminium, zinc, magnesium and calcium stearates

Color

White

Regulatory information

Regulation

(EC) 2009/1223

See every entry this act set

Identified ingredients

Key data

CAS
7047-84-9 / 557-05-1 /557-04-0 / 1592-23-0
EC
230-325-5 / 209-151-9 / 209-150-3 / 216-472-8
Annex
IV
Entry number
150

Inventory links for Aluminium, zinc, magnesium and calcium stearates

Inventory Restriction reference
Ref 38977

ZINC STEARATE

CAS: 557-05-1
EC: 209-151-9

Direct matches are limited for this record, so nearby entries from Annex IV are shown as well.

Annex IV 149
Nearby record in the same annex

ANTHOCYANINS

CAS: 528-58-5 / 134-01-0 / 528-53-0 / 643-84-5 / 134-04-3
EC: 208-438-6 / 205-125-6 / 211-403-8 / 208-437-0 / - / 205-127-7
Annex IV 148
Nearby record in the same annex

BEETROOT RED

CAS: 7659-95-2; 89957-88-0; 89957-89-1
EC: 231-628-5; 289-609-2; 289-610-8
Annex IV 153
Nearby record in the same annex

ACID RED 195

CAS: 12220-24-5
Annex IV 146
Nearby record in the same annex

CARAMEL

EC: 232-435-9
Annex IV 144
Nearby record in the same annex

ZINC OXIDE

CAS: 1314-13-2
EC: 215-222-5
Annex IV 142
Nearby record in the same annex

CI 77820

CAS: 7440-22-4
EC: 231-131-3
Annex IV 141
Nearby record in the same annex

CI 77745

CAS: 10124-54-6
EC: 233-341-0

What Annex IV means for Aluminium, zinc, magnesium and calcium stearates

Aluminium, zinc, magnesium and calcium stearates is an approved colorant listed in Annex IV of EU Cosmetics Regulation 1223/2009. Only colorants on this positive list may be used to colour cosmetic products on the EU market.

Some colorants in Annex IV are restricted by product type — for example, prohibited from use around the eyes or in products applied to mucous membranes. Check the product type and conditions fields above before use.

This record is linked to 4 CosIng inventory ingredients for name and identifier cross-reference. The page also surfaces 12 related annex records with overlapping identifiers, annex logic or naming patterns.

Compliance checklist

  • Confirm colorant is used only in permitted product types listed above.
  • Record the Colour Index number and CAS identifier in the ingredient declaration.

Frequently asked questions

Yes. Aluminium, zinc, magnesium and calcium stearates is included in Annex IV of EU Cosmetics Regulation 1223/2009 as a permitted colorant. Only colorants on this positive list may be used to colour cosmetic products in the EU. Check the product type conditions above for any use restrictions.

CAS 7047-84-9 / 557-05-1 /557-04-0 / 1592-23-0 is the unique numerical identifier assigned to Aluminium, zinc, magnesium and calcium stearates by the Chemical Abstracts Service. In cosmetic compliance work, the CAS number is used to cross-reference the substance across regulatory databases, raw material specifications and safety assessment reports. Multiple EU annex entries may share the same CAS number if the same substance appears under different conditions or in different annexes.

Use the INCI Checker tool on this site to paste your full ingredient list (INCI) and scan it against all Annex II–VI entries. The tool highlights any ingredients that match restricted, prohibited or allergen-flagged records. This is useful for rapid compliance screening of finished product formulas or raw material declarations.
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Source note for Annex IV record Aluminium, zinc, magnesium and calcium stearates

This page summarizes one Annex IV record for Aluminium, zinc, magnesium and calcium stearates from public European Commission cosmetic materials and adds linked inventory or identifier matches when available.

Use this record page to review Annex IV conditions for Aluminium, zinc, magnesium and calcium stearates, but confirm any final regulatory decision against the current official annex wording and source files.

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