Brief Profile

The Brief Profile summarizes the non-confidential data on substances as it is held in the databases of the European Chemicals Agency (ECHA), including data provided by third parties. The Brief Profile is automatically generated; note that it does not currently distinguish between harmonised classification and minimum classification; information requirements under different legislative frameworks may therefore not be fully up to date or complete. For accuracy reasons, substance manufacturers and imports have the responsibility to consult official sources, e.g. the electronic edition of the Official Journal of the European Union.
This Brief Profile is covered by the ECHA Legal Notice.

Substance Description

Substance identity

EC / List no.:
242-419-3
CAS no.:
18547-93-8
Index number:
Molecular formula:
C18H34O5Si2
SMILES:
CC(=C)C(=O)OCCC[Si](C)(C)O[Si](C)(C)CCCOC(=O)C(C)=C
InChI:
InChI=1S/C18H34O5Si2/c1-15(2)17(19)21-11-9-13-24(5,6)23-25(7,8)14-10-12-22-18(20)16(3)4/h1,3,9-14H2,2,4-8H3 AuxInfo=1/0/N:11,12,20,21,22,23,24,25,5,14,6,15,4,13,9,18,8,17,10,19,7,16,2,1,3/E:(1,3)(2,4)(5,6,7,8)(9,10)(11,12)(13,14)(15,16)(17,18)(19,20)(21,22)(24,25)/rA:25SiOSiCCCOCCOCCCCCOCCOCCCCCC/rB:s1;s2;s1;s4;s5;s6;s7;s8;d8;d9;s9;s3;s13;s14;s15;s16;s17;d17;d18;s18;s1;s1;s3;s3;/rC:6.6345,-6.1199,0;7.9499,-6.8634,0;9.2656,-6.1199,0;6.6345,-4.5756,0;5.2619,-3.8321,0;4.0036,-4.5756,0;2.6309,-3.8321,0;2.6309,-2.2878,0;1.3154,-1.5443,0;3.9465,-1.5443,0;1.3154,0,0;0,-2.3449,0;10.581,-6.8634,0;11.8965,-6.1199,0;11.8965,-4.5756,0;13.2119,-3.8321,0;14.5275,-4.5756,0;15.843,-3.7748,0;14.5275,-6.0626,0;17.1584,-4.5756,0;15.843,-2.2878,0;5.2619,-6.8634,0;6.6345,-7.6642,0;9.2656,-4.5756,0;9.2656,-7.6642,0;
Type of substance:
Mono constituent substance
Origin:
Other
Registered compositions:
2
Of which contain:
0 impurities relevant for classification
0 additives relevant for classification
Substance Listed:
EINECS (European INventory of Existing Commercial chemical Substances) List

Hazard classification & labelling

Warning! According to the classification provided by companies to ECHA in REACH registrations this substance is very toxic to aquatic life and is very toxic to aquatic life with long lasting effects.

Additionally, the classification provided by companies to ECHA in CLP notifications identifies that this substance causes serious eye irritation, causes skin irritation and may cause respiratory irritation.

Breakdown of all 29 C&L notifications submitted to ECHA

Eye Irrit. 2 H319
Skin Irrit. 2 H315
STOT SE 3 H335
Not Classified
Aquatic Acute 1 H400
Aquatic Chronic 1 H410
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

https://echa.europa.eu/diss-blank-theme/images/cnl/graph/tick.png Harmonised Classification

https://echa.europa.eu/diss-blank-theme/images/cnl/graph/Reach.png REACH registration dossiers notifications

https://echa.europa.eu/diss-blank-theme/images/cnl/graph/CLP.png CLP notifications

Properties of concern

Regulatory activities

Registration, Evaluation, Authorisation & Restriction of Chemicals (REACH)

Registration
Pre-registration:
Substance pre-registered under REACH.
Registration:
This substance has 1 active registrations under REACH, 1 Joint Submission(s) and 0 Individual Submission(s).
Please see Registrants/Suppliers details.
Evaluation
Dossier Evaluation:
Substance Evaluation:
Authorisation
Candidate List:
Annex XIV (Authorisation List):
Restriction
Annex XVII (Restriction List):

Classification Labelling & Packaging (CLP)

Harmonised C&L:
Notification:
Classification & Labelling has been notified by industry to ECHA for this substance.

Biocidal Products Regulation (BPR)

Active Substance:
Biocidal Products:

Prior Informed Consent (PIC)

Annex I:
Annex V:

European Union Observatory for Nanomaterials (EUON)

EUON:

About this substance

This substance is manufactured and/or imported in the European Economic Area in 1 - 10 tonnes per year.

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.

ECHA has no public registered data on the use of this substance in activities or processes at the workplace.

ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment.

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

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 types of manufacture using this substance.

ECHA has no public registered data on the use of this substance in activities or processes at the workplace.

ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment.

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 use of this substance in activities or processes at the workplace.

ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment.

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 types of manufacture using this substance.

ECHA has no public registered data on the use of this substance in activities or processes at the workplace.

ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment.

ECHA has no public registered data on the use of this substance in activities or processes at the workplace.

ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment.

Precautions for using this substance have been recommended by its registrants under REACH, as follows:

Prevention statements

When handling this substance: avoid release to the environment.

Response statements

In case of incident: Collect spillage.

Disposal statements

The substance must be disposed in accordance with local/regional/national/international regulation.

Guidance on the safe use of the substance provided by manufacturers and importers of this substance.

Registrants/suppliers

  • Shin-Etsu Silicones Europe BV, Bolderweg 32 1332 AV Almere Netherlands

Substance names and other identifiers

(1,1,3,3-tetramethyldisiloxane-1,3-diyl)dipropane-1,3-diyl dimethacrylate
EC Inventory, REACH pre-registration
1,3-Bis(3-methacryloxypropyl)tetramethyldisiloxane
C&L Inventory
1,3-Bis(3-methacryloyloxypropyl)-1,1,3,3-tetramethyldisiloxane
C&L Inventory, Registration dossier
3-({[dimethyl({3-[(2-methylprop-2-enoyl)oxy]propyl})silyl]oxy}dimethylsilyl)propyl 2-methylprop-2-enoate
Other
18547-93-8
CAS number
EC Inventory, C&L Inventory, Registration dossier, REACH pre-registration

Scientific properties

Physical and chemical properties

This section provides physicochemical information compiled from all automatically processable data from REACH registration dossiers that is available to ECHA at the time of generation. The quality and correctness of the information remains the responsibility of the data submitter. The Agency thus cannot guarantee the correctness of the information displayed.

Appearance/physical state / colour

Study results
  • 1 study submitted
  • 1 study processed
C Physical state at 20°C and 1013 hPa
Liquid (100%) [1]
C Form
Liquid (100%) [1]
C Substance type
Organic (100%) [1]

Type of Study provided
Studies with data
Key study 1
Supporting study
Weight of evidence
Other
Data waiving
no waivers
C Summaries
  • 1 summary submitted
  • 1 summary processed
Physical state at 20°C and 1013 hPa
Liquid (100%)

Melting/freezing point

Study results
  • 1 study submitted
  • 1 study processed
R Melting / freezing point
-80 °C @ 101.3 kPa [1]

Type of Study provided
Studies with data
Key study 1
Supporting study
Weight of evidence
Other
Data waiving
no waivers
R Summaries
  • 1 summary submitted
  • 1 summary processed
Melting / freezing point at 101 325 Pa
-80 °C

Boiling point

Study results
  • 2 studies submitted
  • 0 studies processed

No automatically processable data submitted

Type of Study provided
Studies with data
Key study 1
Supporting study 1
Weight of evidence
Other
Data waiving
no waivers
Summaries
  • 1 summary submitted
  • 0 summaries processed

No automatically processable data submitted

Density

Study results
  • 1 study submitted
  • 1 study processed
R Density
0.9 g/cm³ @ 20 °C [1]

Type of Study provided
Studies with data
Key study 1
Supporting study
Weight of evidence
Other
Data waiving
no waivers
Summaries
  • 1 summary submitted
  • 0 summaries processed

No automatically processable data submitted

Vapour pressure

Study results
  • 2 studies submitted
  • 1 study processed
R Vapour pressure
0.005 Pa @ 25 °C [1]

Type of Study provided
Studies with data
Key study 1
Supporting study 1
Weight of evidence
Other
Data waiving
no waivers
R Summaries
  • 1 summary submitted
  • 1 summary processed
Vapour pressure
0.005 Pa @ 25 °C

Partition coefficient

Study results
  • 2 studies submitted
  • 1 study processed
R Log Pow
8.1 @ 20 °C and pH 7 [1]

Type of Study provided
Studies with data
Key study 1
Supporting study 1
Weight of evidence
Other
Data waiving
no waivers
R Summaries
  • 1 summary submitted
  • 1 summary processed
Log Kow (Log Pow)
8.1 @ 20 °C

Water solubility

Study results
  • 2 studies submitted
  • 1 study processed
R Water solubility (mass/vol.)
1.5 µg/L @ 20 °C and pH 7 [1]

Type of Study provided
Studies with data
Key study 1
Supporting study 1
Weight of evidence
Other
Data waiving
no waivers
R Summaries
  • 1 summary submitted
  • 1 summary processed
Water solubility
1.5 µg/L @ 20 °C

Solubility in organic solvents / fat solubility

Data not provided by the registrant

Surface tension

Study results
  • 1 study submitted
  • 0 studies processed

No automatically processable data submitted

Type of Study provided
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
Not feasible
Sci. unjustified 1
Exposure cons.
Other
Summaries
  • 1 summary submitted
  • 0 summaries processed

No automatically processable data submitted

Flash point

Study results
  • 1 study submitted
  • 1 study processed
R Flash point
137 °C @ 101.3 kPa [1]

Type of Study provided
Studies with data
Key study 1
Supporting study
Weight of evidence
Other
Data waiving
no waivers
R Summaries
  • 1 summary submitted
  • 1 summary processed
Flash point at 101 325 Pa
137 °C

Auto flammability

Study results
  • 1 study submitted
  • 1 study processed
R Autoflammability / self-ignition
288 °C @ 101.3 kPa [1]

Type of Study provided
Studies with data
Key study 1
Supporting study
Weight of evidence
Other
Data waiving
no waivers
R Summaries
  • 1 summary submitted
  • 1 summary processed
Autoflammability / self-ignition at 101 325 Pa
288 °C

Flammability

Study results
  • 3 studies submitted
  • 0 studies processed

No automatically processable data submitted

Type of Study provided
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
Not feasible 1
Sci. unjustified 2
Exposure cons.
Other
C Summaries
  • 1 summary submitted
  • 1 summary processed
Flammability
Not classified (100%)

Explosiveness

Study results
  • 1 study submitted
  • 0 studies processed

No automatically processable data submitted

Type of Study provided
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
Not feasible
Sci. unjustified 1
Exposure cons.
Other
C Summaries
  • 1 summary submitted
  • 1 summary processed
Explosiveness
Non-explosive (100%)

Oxidising

Study results
  • 1 study submitted
  • 0 studies processed

No automatically processable data submitted

Type of Study provided
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
Not feasible
Sci. unjustified 1
Exposure cons.
Other
C Summaries
  • 1 summary submitted
  • 1 summary processed
Oxidising
Non oxidising (100%)

Oxidation reduction potential

Data not provided by the registrant

pH

Data not provided by the registrant

Dissociation constant

Data not provided by the registrant

Viscosity

Data not provided by the registrant

Environmental fate and pathways

This section provides environmental fate and pathways information compiled from all automatically processable data from REACH registration dossiers that is available to ECHA at the time of generation. The quality and correctness of the information remains the responsibility of the data submitter. The Agency thus cannot guarantee the correctness of the information displayed.

Phototransformation in air

Data not provided by the registrant

Hydrolysis

Study results
  • 5 studies submitted
  • 0 studies processed

Study data not processed for brief profile

Type of Study provided
Studies with data
Key study 1
Supporting study 3 1
Weight of evidence
Other
Data waiving
no waivers
R Summaries
  • 1 summary submitted
  • 1 summary processed
Half-life for hydrolysis
63 h @ 25 °C

Phototransformation in water

Data not provided by the registrant

Phototransformation in soil

Data not provided by the registrant

Biodegradation in water - screening tests

Study results
  • 1 study submitted
  • 1 study processed
C Interpretation of results
Not readily biodegradable (100%) [1]

Type of Study provided
Studies with data
Key study 1
Supporting study
Weight of evidence
Other
Data waiving
no waivers
Summaries
  • 1 summary submitted
  • 0 summaries processed

No automatically processable data submitted

Biodegradation in water & sediment - simulation tests

Data not provided by the registrant

Biodegradation in soil

Data not provided by the registrant

Bioaccumulation: aquatic / sediment

Data not provided by the registrant

Bioaccumulation: terrestrial

Data not provided by the registrant

Adsorption/desorption

Data not provided by the registrant

Henrys law constant (H)

Data not provided by the registrant

Distribution modelling

Data not provided by the registrant

Ecotoxicological information

This section provides ecotoxicological information compiled from all automatically processable data from REACH registration dossiers that is available to ECHA at the time of generation. The quality and correctness of the information remains the responsibility of the data submitter. The Agency thus cannot guarantee the correctness of the information displayed.

Predicted No-Effect Concentration (PNEC)

Summaries
  • 1 summary submitted
  • 0 summaries processed

No automatically processable data submitted

Short–term toxicity to fish

Data not provided by the registrant

Long–term toxicity to fish

Data not provided by the registrant

Short–term toxicity to aquatic invertebrates

Study results
  • 2 studies submitted
  • 1 study processed
P/RResults
EC50 (48 h) 573 µg/L [1]

Type of Study provided
Studies with data
Key study 1 1
Supporting study
Weight of evidence
Other
Data waiving
no waivers
R Summaries
  • 1 summary submitted
  • 1 summary processed
EC50 / LC50 for freshwater invertebrates
573 µg/L

Long–term toxicity to aquatic invertebrates

Data not provided by the registrant

Toxicity to aquatic algae and cyanobacteria

Study results
  • 1 study submitted
  • 1 study processed
P/RResults
EC50 (72 h) 11 mg/L [1]
NOEC (72 h) 11 mg/L [1]
EC10 (72 h) 11 mg/L [1]

Type of Study provided
Studies with data
Key study 1
Supporting study
Weight of evidence
Other
Data waiving
no waivers
R Summaries
  • 1 summary submitted
  • 1 summary processed
EC50 for freshwater algae
11 mg/L
EC10 or NOEC for freshwater algae
11 mg/L

Toxicity to aquatic plants other than algae

Data not provided by the registrant

Toxicity to microorganisms

Data not provided by the registrant

Sediment toxicity

Data not provided by the registrant

Endocrine disrupter testing in aquatic vertebrates – in vivo

Data not provided by the registrant

Toxicity to terrestrial macroorganisms except arthropods

Data not provided by the registrant

Toxicity to terrestrial arthropods

Data not provided by the registrant

Toxicity to terrestrial plants

Data not provided by the registrant

Toxicity to soil microorganisms

Data not provided by the registrant

Toxicity to birds

Data not provided by the registrant

Toxicity to mammals

Data not provided by the registrant

Toxicological information

This section provides toxicological information compiled from all automatically processable data from REACH registration dossiers that is available to ECHA at the time of generation. The quality and correctness of the information remains the responsibility of the data submitter. The Agency thus cannot guarantee the correctness of the information displayed.

Derived No- or Minimal Effect Level (DN(M)EL)

Data not provided by the registrant

Toxicokinetics, metabolism, and distribution

Data not provided by the registrant

Acute toxicity

Study results
oral
  • 1 study submitted
  • 1 study processed
P/RResults
LD50 2 000 mg/kg bw (rat) [1]
M/CInterpretations of results
GHS criteria not met [1]

Type of Study provided
oral
Studies with data
Key study 1
Supporting study
Weight of evidence
Other
Data waiving
no waivers
inhalation
  • 0 studies submitted
  • 0 studies processed

No data available

inhalation
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
no waivers
dermal
  • 0 studies submitted
  • 0 studies processed

No data available

dermal
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
no waivers
other routes
  • 0 studies submitted
  • 0 studies processed

No data available

other routes
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
no waivers
M/C Summaries
  • 1 summary submitted
  • 1 summary processed
Oral route:
No adverse effect observed LD50 2 000 mg/kg bw

Irritation / corrosion

Study results
Study data: skin
  • 3 studies submitted
  • 0 studies processed

Study data not processed for brief profile

Type of Study provided
Study data: skin
Studies with data
Key study 1 1
Supporting study
Weight of evidence
Other
Data waiving
Not feasible
Sci. unjustified 1
Exposure cons.
Other
Study data: eye
  • 3 studies submitted
  • 0 studies processed

Study data not processed for brief profile

Study data: eye
Studies with data
Key study 1 1
Supporting study
Weight of evidence
Other
Data waiving
Not feasible
Sci. unjustified 1
Exposure cons.
Other
M/C Summaries
  • 1 summary submitted
  • 1 summary processed
Skin
No adverse effect observed (not irritating)
Eye
No adverse effect observed (not irritating)
Respiratory
No study available

Sensitisation

Study results
Study data: skin
  • 2 studies submitted
  • 0 studies processed

Study data not processed for brief profile

Type of Study provided
Study data: skin
Studies with data
Key study 1
Supporting study
Weight of evidence
Other
Data waiving
Not feasible
Sci. unjustified 1
Exposure cons.
Other
Study data: respiratory
  • 0 studies submitted
  • 0 studies processed

Study data not processed for brief profile

Study data: respiratory
Studies with data
Key study
Supporting study
Weight of evidence
Other
Data waiving
no waivers
M/C Summaries
  • 1 summary submitted
  • 1 summary processed
Skin sensitisation
No adverse effect observed (not sensitising)
Respiratory sensitisation
No study available

Repeated dose toxicity

Data not provided by the registrant

Genetic toxicity

Study results
Study data: in vitro
  • 4 studies submitted
  • 0 studies processed

Study data not processed for brief profile

Type of Study provided
Study data: in vitro
Studies with data
Key study 3
Supporting study
Weight of evidence 1
Other
Data waiving
no waivers
Study data: in vivo
  • 2 studies submitted
  • 0 studies processed

Study data not processed for brief profile

Study data: in vivo
Studies with data
Key study 1 1
Supporting study
Weight of evidence
Other
Data waiving
no waivers
M/C Summaries
  • 1 summary submitted
  • 1 summary processed
Toxicity - InVitro
Adverse effect observed (positive)
Toxicity - InVivo
No adverse effect observed (negative)

Carcinogenicity

Data not provided by the registrant

Toxicity to reproduction

Data not provided by the registrant

Neurotoxicity

Data not provided by the registrant

Immunotoxicity

Data not provided by the registrant

Endocrine disrupter mammalian screening - in vivo

Data not provided by the registrant