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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other: Migrated dataset
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Adopted according to OECD SIDS. The original source is not available and has not been reviewed.

Data source

Referenceopen allclose all

Reference Type:
secondary source
Title:
1,4-Dichlorobut-2-ene - CAS No: 764-41-0
Author:
OECD SIDS
Year:
2006
Bibliographic source:
SIDS Initial Assessment Report for 22th SIAM, UNEP Publications
Reference Type:
other: EPIWIN calculation
Title:
Unnamed
Year:
2005

Materials and methods

Principles of method if other than guideline:
Migrated dataset; other: calculated with BCFWIN v2.15, 2000
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
1,4-dichlorobut-2-ene
EC Number:
212-121-8
EC Name:
1,4-dichlorobut-2-ene
Cas Number:
764-41-0
Molecular formula:
C4H6Cl2
IUPAC Name:
1,4-dichlorobut-2-ene
Details on test material:
purity: calculation refers to the pure substance

Results and discussion

Bioaccumulation factor
Type:
BCF
Value:
9.5

Any other information on results incl. tables

Migrated dataset;

RS-Freetext:
A experimentally determined log Kow of 2.18 was used for calculation

Applicant's summary and conclusion

Conclusions:
The bioconcentration factor (BCF) of 9.5 for 1,4-dichlorobut-2-ene (mixture, cis-, and trans-isomers), calculated from the octanol-water partition coefficient, indicates that there is a low potential for bioaccumulation in aquatic organisms.