Registration Dossier
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EC number: 203-008-4 | CAS number: 102-16-9
Endpoint summary
Administrative data
Description of key information
Adsorption / desorption:
The adsorption coefficient Koc in soil and in sewage sludge Benzyl phenylacetate(CAS No.102-16-9) was determined by the Reverse Phase High Performance Liquid Chromatographic method according to OECD Guideline No. 121 for testing of Chemicals. The reference substances were chosen according to functional group similarity with the test substance and calibration graph prepared. The reference substances were benzoic acid methylester, benzoic acid phenylester, naphthalene and phenanthrene having Koc value ranging from 1.8 to 4.09. The Log Koc value was found to be 2.9717 ± 0.0006 at 25°C.
Additional information
Adsorption / desorption:
Four studies including experimental study and predicted data from validated models for adsorption (KOC) endpoint of target chemical Benzyl phenylacetate (Cas no. 102-16-9) were summarized as follows:
First study from experimental report by UERL laboratory; 2017 which suggest the adsorption coefficient Koc in soil and in sewage sludge Benzyl phenylacetate(CAS No.102-16-9) was determined by the Reverse Phase High Performance Liquid Chromatographic method according to OECD Guideline No. 121 for testing of Chemicals. The reference substances were chosen according to functional group similarity with the test substance and calibration graph prepared. The reference substances were benzoic acid methylester, benzoic acid phenylester, naphthalene and phenanthrene having Koc value ranging from 1.8 to 4.09. The Log Koc value was found to be 2.9717 ± 0.0006 at 25°C.
Above results also supported by predicted model KOCWIN model (v2.00) of EPI suite indicate the adsorption value of Benzyl phenylacetate was estimated as Koc 4490 L/kg(log Koc=3.65) by means of MCI method at 25 deg.C. This Koc value indicates that the substance Benzyl phenylacetate has a Moderate sorption to soil and sediment and therefore have slow to moderate migration potential to groundwater.
Another predicted model i.e Chemspider - ACD/PhysChem Suite for target indicate the soil adsorption coefficient i.e Koc value of test substance Benzyl phenylacetate was estimated to be 105.13 (log koc: 2.021) at pH 5.5 and temp.25 deg.C.Koc values at different pH indicates that the substance Benzyl phenylacetate has low sorption to soil and sediment and therefore have moderate migration potential to groundwater.
Last study from Scifinder database suggest the soil adsorption coefficient i.e Koc value of test substance Benzyl phenylacetate was estimated to be 1830 (Log koc-3.26) at pH 1-10 and temperature 25 deg.C.This Koc value at all range of pH condition indicates that the substance Benzyl phenylacetate has Moderate sorption to soil and sediment and therefore have slow migration potential to groundwater.
Thus all available studies for adsorption endpoint gives the common conclusion that the test substance Benzyl phenylacetate (Cas no. 102-16-9) is expected to have moderate to slow mobility in soil and sediment compartment.
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