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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
bioaccumulation: aquatic / sediment
Type of information:
(Q)SAR
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification
Qualifier:
no guideline followed
Principles of method if other than guideline:
Bioconcentration factor BCF of Guanidine was calculated using BCFBAF v3.01 EPI Suite 4.0
GLP compliance:
no
Type:
BCF
Value:
3.162 other: L/kg wet-wt
Remarks on result:
other: regression-based method
Type:
BCF
Value:
0.893 dimensionless
Calculation basis:
other: estimated log Kow used: -1.63
Remarks on result:
other: Arnot-Gobas method
Validity criteria fulfilled:
not applicable
Conclusions:
The calculation yielded a BCF = 0.8935 according to the Arnot-Gobas method and based on the estimated log Kow = -1.63 and BCF = 3.162 L/kg wet-wt according to the regression-based method. The result indicates a low potential for bioaccumulation.
Executive summary:

The bioconcentration factor BCF of Guanidine was calculated using EpiWeb4.0, BCFBAFv3.01. The calculation yielded a BCF=3.162 L/kg wet-wt (regression-based) respective BCF=0.8935 (dimensionless) (Arnot-Gobas method with logKow=-1.63).

The result indicates a low potential for bioaccumulation.

The prediction is in line with the expected property, based on information of a measured Log Kow value.

Description of key information

A low potential for bioaccumulation is expected.


Key value for chemical safety assessment

BCF (aquatic species):
3.2 L/kg ww

Additional information

According to the measured log Kow < -1.7 a low potential for bioaccumulation is expected.

The calculation yielded a BCF = 0.8935 according to the Arnot-Gobas method and based on the estimated log Kow = -1.63 and

BCF = 3.162 L/kg wet-wt according to the regression-based method. The result indicates a low potential for bioaccumulation.

The prediction is in line with the expected property, based on information of a measured Log Kow value.