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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Calculation without report.

Data source

Materials and methods

Test guideline
Guideline:
other: Accepted calculation method by BCFBAF v3.01 © 2000 U.S. Environmental Protection Agency
Principles of method if other than guideline:
A "fragment constant" methodology is used to predict the log BCF. For this, a structure is divided into fragments (atom or larger functional groups) and coefficient values of each fragment or group are summed together to yield the log BCF estimate.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
17-Hydroxy-1 alpha,2 alpha-methylene-4,6-pregnadiene-3,20-dione
EC Number:
606-682-1
Cas Number:
2098-65-9
Molecular formula:
C22 H28 O3
IUPAC Name:
17-Hydroxy-1 alpha,2 alpha-methylene-4,6-pregnadiene-3,20-dione
Test material form:
solid: bulk

Results and discussion

Bioaccumulation factor
Type:
BCF
Value:
51.46 other: L/kg wet-wt
Calculation basis:
other: log Kow (3.10, calc.)
Remarks on result:
other: regression-based method

Applicant's summary and conclusion

Conclusions:
The BCF of 1,2-Methylen-4,6-dien was calculated with BCFBAF (EPI WIN v4.1) and was determined to be 51.46 L/kg wet-wt.
Executive summary:

The BCF of 1,2-Methylen-4,6-dien was calculated with BCFBAF (EPI WIN v4.1) and was determined to be 51.46 L/kg wet-wt.