Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

OASIS CATALOGIC BCF base-line model was used to predict the bioconcentration factor. The dialkyl dithiophosphate ester (dissociated from zinc) was the molecule modeled. A BCF of 38.9 was predicted. A maximum BCF of approximately 19,000 was predicted based on the log Kow of 7.4; the BCF prediction was modified per the model based on mitigating effects of metabolism and size exclusion. The molecule modeled was within the parametric domain; 87.1% in the structural fragment domain; and within the mechanistic domain; this resulted in an overall conclusion that this molecule is within the model's domain. The QPRF report is attached.

In addition, the BCF value from an OECD 305 study with CAS 121158 -58 -5 (TPP) is also included as this is relevant for the risk assessment.

Additional information