Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

For 2 -methylbutane, measured data from author and other investigators were quality assessed and then used to develop a rate constant. The values used to determine valid rate constant are based on all valid studies at the time of publication. The photooxidative half life for 2-methylbutane are 2.3 days (Atkinson 1985). Structural analysis of 2 -methylbutane indicates that it is not expected to undergo hydrolysis in the environment due to the lack of hydrolysable functional groups.