Substance Information
Substance Information
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REACH Registration data can be found in the new ECHA CHEM database. The old ‘Registered substance factsheets’ will be available on this web site during the transition period but have not been updated since 19 May 2023. More
Octamethylcyclotetrasiloxane
EC / List no.: 209-136-7
CAS no.: 556-67-2
Mol. formula: C8H24O4Si4
Warning! According to the harmonised classification and labelling (ATP15) approved by the European Union, this substance is very toxic to aquatic life with long lasting effects and is suspected of damaging fertility.
Additionally, the classification provided by companies to ECHA in REACH registrations identifies that this substance is a flammable liquid and vapour and is suspected of damaging fertility or the unborn child.
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Possibly Toxic to Reproduction |
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Persistent, Bioaccumulative and Toxic |
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Under assessment as Persistent Organic Pollutant |
- Substance of very high concern (SVHC) and included in the candidate list for authorisation.
- Some uses of this substance are restricted under Annex XVII of REACH.
This substance is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 100 000 to < 1 000 000 tonnes per annum.
This substance is used by consumers, in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.
This substance is used by consumers, in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.
Consumer Uses
This substance is used in the following products:
cosmetics and personal care products,
washing & cleaning products,
polishes and waxes and
inks and toners.
Other release to the environment of this substance is likely to occur from:
indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners) and
outdoor use.
Article service life
Release to the environment of this substance can occur from industrial use:
industrial abrasion processing with low release rate (e.g. cutting of textile, cutting, machining or grinding of metal) and
of articles where the substances are not intended to be released and where the conditions of use do not promote release.
Other release to the environment of this substance is likely to occur from:
indoor use in long-life materials with low release rate (e.g. flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment) and
outdoor use in long-life materials with low release rate (e.g. metal, wooden and plastic construction and building materials).
This substance can be found in products with material based on:
paper (e.g. tissues, feminine hygiene products, nappies, books, magazines, wallpaper) and
leather (e.g. gloves, shoes, purses, furniture).
Widespread uses by professional workers
This substance is used in the following products:
cosmetics and personal care products,
washing & cleaning products,
laboratory chemicals,
polishes and waxes and
coating products.
This substance is used in the following areas:
scientific research and development,
formulation of mixtures and/or re-packaging and
building & construction work.
This substance is used for the manufacture of:
.
Other release to the environment of this substance is likely to occur from:
indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners) and
outdoor use.
Formulation or re-packing
This substance is used in the following products:
cosmetics and personal care products,
leather treatment products,
lubricants and greases,
textile treatment products and dyes and
coating products.
Release to the environment of this substance can occur from industrial use:
formulation of mixtures.
Uses at industrial sites
This substance is used in the following products:
laboratory chemicals,
non-metal-surface treatment products,
polymers,
semiconductors,
leather treatment products,
lubricants and greases and
textile treatment products and dyes.
This substance has
an industrial use resulting in manufacture of another substance (use of intermediates).
This substance is used in the following areas:
scientific research and development.
This substance is used for the manufacture of:
chemicals and
mineral products (e.g. plasters, cement).
Release to the environment of this substance can occur from industrial use:
as an intermediate step in further manufacturing of another substance (use of intermediates),
for thermoplastic manufacture,
as processing aid and
in processing aids at industrial sites.
Manufacture
Release to the environment of this substance can occur from industrial use:
manufacturing of the substance.
The InfoCard summarises the non-confidential data on substances as held in the databases of the European Chemicals Agency (ECHA), including data provided by third parties. The InfoCard is automatically generated. Information requirements under different legislative frameworks may therefore not be up–to–date or complete. Substance manufacturers and importers are responsible for consulting official publications. This InfoCard is covered by the ECHA Legal Disclaimer.
about INFOCARD - Last updated: 06/09/2023