Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
bioaccumulation: aquatic / sediment
Type of information:
(Q)SAR
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
use of an acknowledged and reliable calculation method (ACD/LogD Suite) to obtain the Log Pow value and application of the relationships recommended by the Technical Guidance Document on Risk Assessment (Directive 98/8/EC) to calculate the Log BCF value from the Log Pow value
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report date:
2010

Materials and methods

Test guideline
Guideline:
other: program ACD/LogD Suite and formulas from the Technical Guidance Document (TGD) for Risk Assessment
Principles of method if other than guideline:
The ACD/LogD Suite Program (Version 10, Advanced Chemistry Development, Toronto, Canada ) estimates the Log n-octanol/water partition coefficient (log POW) of organic chemicals by using a molecule fragment contribution method. The Log BFC value is estimated in a second step with the help of the equation Log BCF = 0.85*Log Pow – 0.7. The equation is taken from Technical Guidance Document (TGD) on Risk Assessments (Directive 98/8/EC).
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
(bromomethyl)cyclobutane
EC Number:
700-027-4
Cas Number:
17247-58-4
Molecular formula:
C5H9Br
IUPAC Name:
(bromomethyl)cyclobutane

Test organisms

Test organisms (species):
other: QSAR, no organisms necessary

Study design

Route of exposure:
other: n.a.
Test type:
other: QSAR method (ACD/LogD Suite)/ formula from TGD

Test conditions

Details on estimation of bioconcentration:
The ACD/LogD Suite Program (Version 10, Advanced Chemistry Development, Toronto, Canada ) estimates the Log n-octanol/water partition coefficient (log POW) of organic chemicals by using a molecule fragment contribution method. The Log BFC value is estimated in a second step with the help of the equation Log BCF = 0.85*Log Pow – 0.7. The equation is taken from Technical Guidance Document (TGD) on Risk Assessments (Directive 98/8/EC)

Results and discussion

Bioaccumulation factor
Type:
other: Log BCF
Value:
1.5 dimensionless
Calculation basis:
other: QSAR method

Applicant's summary and conclusion

Validity criteria fulfilled:
not applicable
Conclusions:
The Log BCF value is calculated as 1.5. The value is not dependent on the pH value.