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Environmental fate & pathways

Phototransformation in air

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Description of key information

Phototransformation is not a relevant degradation pathway.

Key value for chemical safety assessment

Additional information

No experimental data evaluating the potential for photodegradation of Sodium hydrogen N-(1-oxododecyl)-L-glutamate (CAS No. 29923-31-7) in air are available. As the substance is a complex UVCB substance, QSAR calculations for the main components (C12, C14) have been performed (AOPWIN v1.92, EPISuiteTM), resulting in estimated half-lives (DT50 values) of 11.76 (C12) and 10.84 (C14) hours (OH concentration: 0.5E+06 OH/cm3, 24h-day).

These results indicate that

L-Glutamic acid, N-(1-oxododecyl)-, monosodium salt is susceptible for indirect photodegradation in air. However, photodegradation in air is not considered to be a relevant degradation process as the substance is not expected to evaporate into the atmosphere based on its low vapor pressure.