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

 

Substance Infocard

IC

1,1,3,3-tetramethyl-1,3-divinyldisiloxane

Help Substance identity

The ‘Substance identity’ section is calculated from substance identification information from all ECHA databases. The substance identifiers displayed in the InfoCard are the best available substance name, EC number, CAS number and/or the molecular and structural formulas.

Some substance identifiers may have been claimed confidential, or may not have been provided, and therefore not be displayed.

EC (European Community) Number

The EC Number is the numerical identifier for substances in the EC Inventory. The EC Inventory is a combination of three independent European lists of substances from the previous EU chemicals regulatory frameworks (EINECS, ELINCS and the NLP-list). More information about the EC Inventory can be found here.

If the substance was not covered by the EC Inventory, ECHA attributes a list number in the same format, starting with the numbers 6, 7, 8 or 9.

The EC or list number is the primary substance identifier used by ECHA.

CAS (Chemical Abstract Service) registry number

The CAS number is the substance numerical identifier assigned by the Chemical Abstracts Service, a division of the American Chemical Society, to substances registered in the CAS registry database. A substance identified primarily by an EC or list number may be linked with more than one CAS number, or with CAS numbers that have been deleted. More information about CAS and the CAS registry can be found here.

Molecular formula

The molecular formula identifies each type of element by its chemical symbol and identifies the number of atoms of each element found in one discrete molecule of the substance. This information is only displayed if the substance is well–defined, its identity is not claimed confidential and there is sufficient information available in ECHA’s databases for ECHA’s algorithms to generate a molecular structure.

Molecular structure

The molecular structure is based on structures generated from information available in ECHA’s databases. If generated, an InChI string will also be generated and made available for searching. This information is only displayed if the substance is well-defined, its identity is not claimed confidential and there is sufficient information available in ECHA’s databases for ECHA’s algorithms to generate a molecular structure.

More help available here.

EC / List no.: 220-099-6

CAS no.: 2627-95-4

Mol. formula: C8H18OSi2

formula
Help Hazard classification and labelling

The ‘Hazard classification and labelling’ section shows the hazards of a substance based on the standardised system of statements and pictograms established under the CLP (Classification Labelling and Packaging) Regulation. The CLP Regulation makes sure that the hazards presented by chemicals are clearly communicated to workers and consumers in the European Union. The CLP Regulation uses the UN Global Harmonised System (GHS) and European Union Specific Hazard Statements (EUH).

This section is based on three sources for information (harmonised classification and labelling (CLH), REACH registrations and CLP notifications). The source of the information is mentioned in the introductory sentence of the hazard statements. When information is available in all sources, the first two are displayed as a priority.

Please note:

The purpose of the information provided under this section is to highlight the substance hazardousness in a readable format. It does not represent a new labelling, classification or hazard statement, neither reflect other factors that affect the susceptibility of the effects described, such as duration of exposure or substance concentration (e.g. in case of consumer and professional uses). Other relevant information includes the following:

  • Substances may have impurities and additives that lead to different classifications. If at least one company has indicated that the substance classification is affected by impurities or additives, this will be indicated by an informative sentence. However, substance notifications in the InfoCard are aggregated independently of the impurities and additives.
  • Hazard statements were adapted to improve readability and may not correspond textually to the hazard statements codes description in the European Union Specific Hazard Statements (EUH) or the UN Global Harmonised System (GHS).

To see the full list of notified classifications and to get more information on impurities and additives relevant to classification please consult the C&L Inventory.

More information about Classification and Labelling is available in the Regulations section of ECHA website.

More help available here.

Harmonised classification and labelling (CLH)

Harmonised classification and labelling is a legally binding classification and labelling for a substance, agreed at European Community level. Harmonisation is based on the substance’s physical, toxicological and eco-toxicological hazard assessment.

The ‘Hazard classification’ and labelling section uses the signal word, pictogram(s) and hazard statements of the substance under the harmonised classification and labelling (CLH) as its primary source of information.

If the substance is covered by more than one CLH entry (e.g. disodium tetraborate EC no. 215–540–4, is covered by three harmonisations: 005–011–00–4; 005–011–01–1 and 005–011–02–9), CLH information cannot be displayed in the InfoCard as the difference between the CLH classifications requires manual interpretation or verification. If a substance is classified under multiple CLH entries, a link to the C&L Inventory is provided to allow users to view CLH information associated with the substance and no text is automatically generated for the InfoCard.

It is possible that a harmonisation is introduced through an amendment to the CLP Regulation. In that case, the ATP (Adaptation to Technical Progress) number is displayed.

More info on CLH can be found here.

Classification and labelling under REACH

If available, additional information on classification and labelling (C&L) is derived from REACH registration dossiers submitted by industry. This information has not been reviewed or verified by ECHA, and may change without prior notice. REACH registration dossiers have greater data requirements (such as supporting studies) than do notifications under CLP.

Notifications under the Classification Labelling and Packaging (CLP) Regulation

If no EU harmonised classification and labelling exists and the substance was not registered under REACH, information derived from classification and labelling (C&L) notifications to ECHA under CLP Regulation is displayed under this section. These notifications can be provided by manufacturers, importers and downstream users. ECHA maintains the C&L Inventory, but does not review or verify the accuracy of the information.

Note that for readability purposes, only the pictograms, signal words and hazard statements referred in more than 5% of the notifications under CLP are displayed.

GHS02: Flammable GHS08: Serious Health Hazard

Danger! According to the classification provided by companies to ECHA in REACH registrations this substance is a highly flammable liquid and vapour and is suspected of damaging fertility or the unborn child.

Helpful information About this substance

This section provides an overview of the calculated volume at which the substance is manufactured or imported to the European Economic Area (EU28 + Iceland, Liechtenstein and Norway). Additionally, if available, information on the use of the substance and how consumers and workers are likely to be exposed to it can also be displayed here.

The use information is displayed per substance life cycle stage (consumer use, in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites or in manufacturing). The information is aggregated from the data coming from REACH substance registrations provided by industry.

For a detailed overview on identified uses and environmental releases, please consult the registered substance factsheet.

Use descriptors are adapted from ECHA guidance to improve readability and may not correspond textually to descriptor codes described in Chapter R.12: Use Descriptor system of ECHA Guidance on information requirements and chemical safety assessment.

The examples provided are generic examples and may not apply to the specific substance you are viewing. A substance may have its use restricted to certain articles or products and therefore not all the examples may apply to the specific substance. Furthermore, some substances can be found in an article, but with unlikely exposure (e.g. inside a watch) or with very low concentrations considered not to pose risks to human health or the environment.

Please note:

For readability purpose, only non-confidential use descriptors occurring in more than 5% of total occurrences are displayed.

The described Product category (i.e. the products in which the substance may be used) may refer to uses as intermediate and under controlled conditions, for which there is no consumer exposure.

More help is available here.

This substance is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 1 000 to < 10 000 tonnes per annum.

This substance is used in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.

Consumer Uses

ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment.

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).
ECHA has no public registered data indicating whether or into which articles the substance might have been processed.

Widespread uses by professional workers

ECHA has no public registered data indicating whether or in which chemical products the substance might be used. This substance is used for the manufacture of: .
Other release to the environment of this substance is likely to occur from: indoor use and outdoor use resulting in inclusion into or onto a materials (e.g. binding agent in paints and coatings or adhesives).

Formulation or re-packing

This substance is used in the following products: coating products, adhesives and sealants, polymers, leather treatment products, textile treatment products and dyes, fillers, putties, plasters, modelling clay, inks and toners, semiconductors and washing & cleaning products.
Release to the environment of this substance can occur from industrial use: formulation of mixtures and formulation in materials.

Uses at industrial sites

This substance is used in the following products: polymers, coating products, adhesives and sealants, semiconductors, leather treatment products, textile treatment products and dyes and laboratory chemicals.
This substance is used in the following areas: formulation of mixtures and/or re-packaging and scientific research and development.
This substance is used for the manufacture of: chemicals, electrical, electronic and optical equipment, machinery and vehicles, textile, leather or fur and rubber products.
Release to the environment of this substance can occur from industrial use: in the production of articles, as processing aid, as an intermediate step in further manufacturing of another substance (use of intermediates), for thermoplastic manufacture and as processing aid.

Manufacture

Release to the environment of this substance can occur from industrial use: manufacturing of the substance.

Help How to use it safely

This section provides links to the list of precautions (precautionary statements) and to the guidance on safe use, if they have been provided in REACH registration dossiers.

  • Precautionary statements - describe recommended measures to minimise or prevent adverse effects resulting from exposure to a hazardous product or improper storage or handling of a hazardous product.
  • Guidance on safe use - recommendations by substance registrant on the proper use of the substance in various situations. Examples include recommended measures on fire-fighting, transport and recycling and disposal.

Please note: Precautionary measures and guidance on safe use concern the use and handling of the specific substance as such, not of the presence of the substance in other articles or mixtures. The precautionary measures and guidance on safe use are as submitted to ECHA by registrants under the REACH Regulation. Information on precautionary measures and the safe use is submitted by the registrant of a substance and the registrant is solely responsible for its accuracy and completeness.

More help available here.

about INFOCARD - Last updated: 06/09/2023 InfoCard

The InfoCard summarises the non-confidential data of a substance held in the databases of the European Chemicals Agency (ECHA). InfoCards are generated automatically based on the data available at the time of generation.

The quality and correctness of the information submitted to ECHA remains the responsibility of the data submitter. The type of uses and classifications may vary between different submissions to ECHA and for a full understanding it is recommended to consult the source data. Information on applicable regulatory frameworks is also automatically generated and may not be complete or up to date. It is the responsibility of the substance manufacturers and importers to consult official publications, e.g. the electronic edition of the Official Journal of the European Union.

InfoCards are updated when new information is available. The date of the last update corresponds to the publication date of the InfoCard and not necessarily to the date in which the update occurred in the source data.

More help available here.

Help Help

Key datasets

HELP HELP

Regulatory context

Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. This substance has been found in the following regulatory activities (directly, or inheriting the regulatory context of a parent substance):

REACH - Registration, Evaluation, Authorisation and Restriction of Chemicals Regulation
CLP - Classification, Labelling and Packaging
  • Substances for which classification and labeling data have been submitted to ECHA in a registration under REACH or notified by manufacturers or importers under CLP. Such notifications are required for hazardous substances, as such or in mixtures, as well as for all substances subject to registration, regardless of their hazard.
Previous Legislations
  • Substances listed in the EINECS, ELINCS, or NLP inventories.
Help Help

Substance names and other identifiers

Regulatory process names
1,1,3,3-tetramethyl-1,3-divinyldisiloxane
EC Inventory
1,1,3,3-tetramethyl-1,3-divinyldisiloxane
Pre-Registration process
IUPAC names
1,1,3,3-Tetramethyl-1,3-divinyldisiloxan
C&L Inventory
1,1,3,3-Tetramethyl-1,3-divinyldisiloxane
C&L Inventory, Registration dossier
1,1,3,3-tetramethyl-1,3-divinyldisiloxane
C&L Inventory, Registration dossier
1,1,3,3-tetramethyl-1,3-divinyldisiloxane
Registration dossier
1,3-Divinyltetramethyldisiloxane
C&L Inventory
2627-95-4 1,1,3,3-tetramethyl-1,3-divinyldisiloxane
Registration dossier
Disiloxane, 1,3-diethenyl-1,1,3,3-tetramethyl-
C&L Inventory
DVDS
Registration dossier
ethenyl-[ethenyl(dimethyl)silyl]oxy-dimethylsilane
Registration dossier
ethenyl[(ethenyldimethylsilyl)oxy]dimethylsilane
C&L Inventory, Registration dossier, Other
Tetramethyldivinyldisiloxane
C&L Inventory
Tetramethyldivinyldisiloxane
Registration dossier
Trade names
1,1,3,3-tetramethyl-1,3-divinyldisiloxane
Registration dossier
BLUESIL FLD 621V1
Registration dossier
Divinyltetramethyldisiloxane
Registration dossier
SF3000EDK010
Registration dossier
SF3000EDX100
Registration dossier
SF3900C
Registration dossier
SF3902M
Registration dossier
SH0001C
Registration dossier
SH0003B
Registration dossier
SH0005B
Registration dossier
SH0005U
Registration dossier
SH0006B
Registration dossier
SH0007B
Registration dossier
SH0010U
Registration dossier
SH0020U
Registration dossier
SH0030U
Registration dossier
SH0040U
Registration dossier
SH0050U
Registration dossier
SH0058B
Registration dossier
SH0060U
Registration dossier
SH0070U
Registration dossier
SH1021U
Registration dossier
SH1032U
Registration dossier
SH1040U
Registration dossier
SH1041U
Registration dossier
SH1050U
Registration dossier
SH1060U
Registration dossier
SH1061U
Registration dossier
SH1064U
Registration dossier
SH1070U
Registration dossier
SH1070UTT901
Registration dossier
SH1070UTT902
Registration dossier
SH1072U
Registration dossier
SH1073U
Registration dossier
SH1074U
Registration dossier
SH1080E
Registration dossier
SH1080U
Registration dossier
SH1090U
Registration dossier
SH1270U
Registration dossier
SH1460U
Registration dossier
SH1550U
Registration dossier
SH1660U
Registration dossier
SH1875U
Registration dossier
SH2140U
Registration dossier
SH2540U
Registration dossier
SH2580U
Registration dossier
SH2660U
Registration dossier
SH3050B
Registration dossier
SH3055B
Registration dossier
SH4001Z
Registration dossier
SH4001ZNC133
Registration dossier
SH4001ZNC911
Registration dossier
SH4002ZNC911
Registration dossier
SH5060U
Registration dossier
SH5070U
Registration dossier
SH5180U
Registration dossier
SH5360U
Registration dossier
SH5860U
Registration dossier
SH6050U
Registration dossier
SH6060U
Registration dossier
SH6070U
Registration dossier
SH6280U
Registration dossier
SH6281U
Registration dossier
SH6560U
Registration dossier
SH6570U
Registration dossier
SH6580U
Registration dossier
SH7070U
Registration dossier
SH7255U
Registration dossier
SH7340U
Registration dossier
SH7545U
Registration dossier
SH7751U
Registration dossier
SH7761U
Registration dossier
SH7771U
Registration dossier
SH8260U
Registration dossier
SH8270U
Registration dossier
SH9151U
Registration dossier
SH9161U
Registration dossier
SI6093Z
Registration dossier
SI6095Z
Registration dossier
SK0010C
Registration dossier
SL2501A
Registration dossier
SL2501B
Registration dossier
SL3000ANE162
Registration dossier
SL3000ATT900
Registration dossier
SL3000BNE162
Registration dossier
SL3000BTT900
Registration dossier
SL3358A
Registration dossier
SL3358B
Registration dossier
SL5100A
Registration dossier
SL5100B
Registration dossier
SL7230A
Registration dossier
SL7230B
Registration dossier
SL7240A
Registration dossier
SL7240B
Registration dossier
SL7250ATT903
Registration dossier
SL7250ATT905
Registration dossier
SL7250BTT903
Registration dossier
SL7250BTT905
Registration dossier
SL7260A
Registration dossier
SL7260ATT903
Registration dossier
SL7260ATT907
Registration dossier
SL7260B
Registration dossier
SL7260BTT903
Registration dossier
SL7260BTT907
Registration dossier
SL7270A
Registration dossier
SL7270ATT903
Registration dossier
SL7270B
Registration dossier
SL7270BTT903
Registration dossier
SL8601ACG791
Registration dossier
SL8601ACG792
Registration dossier
SL8601BCG791
Registration dossier
SL8601BCG792
Registration dossier
SL8609A
Registration dossier
SL8609ACG792
Registration dossier
SL8609B
Registration dossier
SL8609BCG792
Registration dossier
SL8640A
Registration dossier
SL8640B
Registration dossier
SL9051A
Registration dossier
SL9051B
Registration dossier
SL9055A
Registration dossier
SL9055B
Registration dossier
SL9340A
Registration dossier
SL9340B
Registration dossier
SL9805ARM102
Registration dossier
SM9010A
Registration dossier
SM9010B
Registration dossier
SM9110G
Registration dossier
SM9120G
Registration dossier
SM9150G
Registration dossier
SM9152G
Registration dossier
SM9174G
Registration dossier
SM9175G
Registration dossier
SM9189G
Registration dossier
SM9476G
Registration dossier
SM9514G
Registration dossier
SM9520G
Registration dossier
SM9760G
Registration dossier
Other identifiers
2627-95-4
EC Inventory, C&L Inventory, Registration dossier, Pre-Registration process
CAS number