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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
adsorption / desorption
Remarks:
other: calculation
Type of information:
calculation (if not (Q)SAR)
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 KOCWIN v2.00 © 2000 U.S. Environmental Protection Agency
Principles of method if other than guideline:
A "fragment constant" methodology is used to predict the log KOC. 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 KOC 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

Adsorption coefficientopen allclose all
Type:
Koc
Value:
416.4
Remarks on result:
other: KOW method (unit: L/kg)
Key result
Type:
log Koc
Value:
2.62
Remarks on result:
other: KOW method

Results: HPLC method

Details on results (HPLC method):
Temperature is not specified.

Applicant's summary and conclusion

Conclusions:
The log Koc of 2.62 (Koc: 416.4 L/kg) of 1,2-Methylen-4,6-dien was calculated with KOCWIN (EPI WIN v4.1).
Executive summary:

The log Koc of 2.62 (Koc: 416.4 L/kg) of 1,2-Methylen-4,6-dien was calculated with KOCWIN (EPI WIN v4.1).