Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Very little information concerning the environmental fate of the substance that was considered directly relevant to the REACH endpoints was found to be readily available. The most relevant information is that regarding the substance’s biodegradability.

The key study for biodegradability (Hanstveit, 2003) reported 0% degradation of the registered substance after 28 days and -3% after 39 days. The substance is therefore not considered readily biodegradable as the 60% degradation criterion after 28 days was not met. The oxygen consumption in the degradation test was inhibited by the test substance. Therefore, any biodegradability of tetraoctylstannane could not be demonstrated in this test due to its inhibiting effects to the inoculum.