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Annex II Entry 761 CMR24/11/2016

Erionite

Erionite is listed in Annex II as a prohibited substance for cosmetic products placed on the EU market.

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Prohibited substance— Annex II, EU Regulation 1223/2009
Entry: 761
CMR

Chemical identity and properties

PubChem 2D chemical structure for CAS 12510-42-8
CAS 12510-42-8PubChem CID 61565

Erionite

Erionite can cause cancer according to an independent committee of scientific and health experts. — California Office of Environmental Health Hazard Assessment (OEHHA)

IUPAC name
aluminum;calcium;potassium;sodium;oxido-[oxido(oxo)silyl]oxy-oxosilane;oxygen(2-);triacontahydrate
Molecular formula
AlCaH60KNaO36Si2+3
Molecular weight
821.77 g/mol
Exact mass
821.1378863 Da
Topological polar surface area
120.0 Ų
Hydrogen-bond donors
30
Hydrogen-bond acceptors
36
Covalent units
36
Defined stereocentres
0

Also known as

Erionite ((K0-1Na0-1Ca0-0.5)10(Al10Si26O72).30H2O)RefChem:591091620-440-2643-075-0HSDB 7765AQTSNQQRPNNYRB-UHFFFAOYSA-N
Open full PubChem recordPubChem annotations3D structure image

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match61565

Attributed physical-property, hazard, environmental and use annotations.

  • Sources/Uses: Occupational exposures occur during mining, milling and processing of some zeolites as well as during agricultural work in areas in which soils are contaminated with erionite. [IARC] Zeolites are used in water softeners, detergents, cracking catalysts, adsorbents, desiccants, and solar collectors; [Hawley] Zeolites are used for pet litter, soil conditioners, animal feed, waste-water treatment, gas absorbents, etc. Erionite deposits exist in Arizona, Nevada, Oregon, and Utah. [NTP] Workers may be exposed in waste treatment, agricultural waste, air pollution control systems, cement aggregates, and building materials; [Siemiatycki, p. 326] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
  • Restricted Notes: Erionite is no longer commercially mined; [NTP] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
  • Industrial Processes with risk of exposure: Farming (Respiratory Hazards) [Category: Industry] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
  • Uses: Erionite is no longer mined or marketed for commercial purposes. Although other natural zeolites have many commercial uses (pet litter, soil conditioners, animal feed, waste-water treatment, gas absorbents, etc.) because of their unique properties, very few data are available specifically for erionite. It reportedly was used in the past as a noble metal-impregnated catalyst in a hydrocarbon-cracking process and was studied for use in fertilizers and to control odors in livestock production. Erionite-rich blocks have been used to build houses in parts of the western U.S., but this was a minor and unintentional use of the mineral. Source: Hazardous Substances Data Bank (HSDB)

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status
SourceResultChecked
NIH PubChem PUG-ViewExact match2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

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

Chemical name

Erionite

Regulatory information

Regulation

(EC) 2009/1223

See every entry this act set

SCCS opinions

CMR

CategoryCarcinogenicMutagenicReprotoxic
Cat. 1A✓——

Key data

CAS
12510-42-8
EC
—
Annex
II
Entry number
761

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

Annex II 762
Nearby record in the same annex

Crocidolite

CAS: 12001-28-4
EC: 601-649-8
Annex II 763
Nearby record in the same annex

Petroleum

CAS: 8002-05-9
EC: 232-298-5

What Annex II means for Erionite

Erionite is listed as a prohibited substance under Annex II of EU Cosmetics Regulation 1223/2009 and must not be intentionally added. Article 17 separately addresses unintended small quantities that are technically unavoidable under good manufacturing practice and compatible with the Article 3 safety requirement.

Formulators must screen their ingredients and raw materials to ensure none contain this substance. Suppliers should provide documentation confirming absence when requested.

The page also surfaces 12 related annex records with overlapping identifiers, annex logic or naming patterns.

Compliance checklist

  • Verify this substance is absent from all raw materials and finished formulations.
  • Request absence confirmation or CoA from raw material suppliers.
  • Document the screening result in the Product Information File (PIF).
  • This substance has CMR classification. Review the CMR table above and verify current Annex II/III status before use.

Frequently asked questions

Yes. Erionite is listed in Annex II of EU Cosmetics Regulation 1223/2009 and is prohibited as an intentionally added cosmetic ingredient. Article 17 provides a narrow exception for unintended small quantities that are technically unavoidable under good manufacturing practice, provided the product remains safe under Article 3.

CAS 12510-42-8 is the unique numerical identifier assigned to Erionite 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.

Erionite has a CMR (carcinogenic, mutagenic or reprotoxic) classification under EU CLP Regulation. Under Article 15 of EU Cosmetics Regulation 1223/2009, CMR substances of category 1A or 1B are prohibited in cosmetics unless specifically permitted. Category 2 CMR substances may be used only if assessed safe by the SCCS. Always verify current annex status and any applicable derogations before use.

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 II record Erionite

This page summarizes one Annex II record for Erionite from public European Commission cosmetic materials and adds linked inventory or identifier matches when available.

Use this record page to review Annex II conditions for Erionite, but confirm any final regulatory decision against the current official annex wording and source files.

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