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Environmental fate & pathways

Adsorption / desorption

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Description of key information

The Koc is required for exposure assessment and derivation of PNECsoil and PNEC sediment. The Koc for the Methyl Anthranilate assessment entity has been estimated from the measured log Kow.

Key value for chemical safety assessment

Koc at 20 °C:
91

Additional information

Regression Model: Log Koc = 0.52 Log Kow + 1.02, n = 390, r2 = 0.63, s.e. = 0.56.

Applicability Domain: chemical class “Nonhydrophobics”, log Kow range of -2 to 8.0. All chemicals that are not classified as hydrophobics. Hydrophobics are chemicals with C, H, F, Cl, Br and I atoms. Since methyl anthranilate contains C, H, N and O atoms it is considered “nonhydrophobic”.

Reference: ECG TGD on Risk Assessment, Part III, Chapter 4 (2003), available at https://echa.europa.eu/documents/10162/16960216/tgdpart3_2ed_en.pdf.

The log Kow for methyl anthranilate is 1.8. This gives an estimated Log Koc of 1.956 (equivalent to Koc of 91)