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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
monitoring data
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The study was well documented and meets generally accepted scientific principles, but was not conducted in compliance with GLP. The study report is available predominantly in Japanese; a summary of results and key data is presented in English.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report date:
2015

Materials and methods

Test material

1
Chemical structure
Reference substance name:
Dodecamethylpentasiloxane
EC Number:
205-492-2
EC Name:
Dodecamethylpentasiloxane
Cas Number:
141-63-9
Molecular formula:
C12H36O4Si5
IUPAC Name:
2,2,4,4,6,6,8,8,10,10-decamethyl-3,5,7,9-tetraoxa-2,4,6,8,10-pentasilaundecane

Study design

Details on sampling:
Sediment samples were collected on 2014-11-04 and 2014-11-05 from 20 points throughout inner Tokyo Bay.

Fish samples of Japanese sea bass, white croaker, Japanese scaled sardine, red barracuda, and Japanese anchovy were collected by small-scale trawl fishery on 2014-11-11, 2014-11-12 and 2014-11-20. Three samples of each fish species were analysed, other than Japanese scaled sardine where the sample weight was insufficient for three analyses.

Results and discussion

Concentration
Country:
Japan
Location:
Tokyo Bay
Substance or metabolite:
substance
Remarks on result:
other: Measured concentrations of L5 in surface sediment ranged from

Applicant's summary and conclusion

Conclusions:
Measured concentrations of L5 in surface sediment ranged from