Registration Dossier
Registration Dossier
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EC number: 232-087-8 | CAS number: 7785-70-8
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
The substance exhibits an estimated fish BCF of 855.7 L/kg (geometric mean of three QSAR results)
Key value for chemical safety assessment
- BCF (aquatic species):
- 855.7 L/kg ww
Additional information
Three QSAR estimations were performed :
- Regression-based estimate, BCFBAF v3.01
- Arnot-Gobas lower trophic level (including biotransformation), BCFBAF v3.01
- TGD (2003) part. II, eq. (74)
The output of calculations are shown here below:
-Regression-based estimate (BCF-BAF v3.01): BCF = 407.1 L/kg
-Arnot-Gobas lower trophic level (BCF-BAF v3.01): BCF = 1248.0L/kg
-TGD (2003): BCF = 1233.1 L/kgFor the purposes of defining a key value for chemical safety assessment, it is proposed to give an equivalent weight for each BCF estimation and to use the geometric mean to determine a representative BCF value:
-BCFgeom.mean = 855.7 L/kg ww
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