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PBT assessment

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PBT assessment: overall result

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Name:
2-ethylhexyl benzoate
Type of composition:
legal entity composition of the substance
State / form:
liquid
Reference substance:
Composition 1
Name:
2-ethylhexyl benzoate
Type of composition:
boundary composition of the substance
State / form:
liquid
Reference substance:
Composition 1
PBT status:
the substance is not PBT / vPvB
Justification:

The PBT Assessment for 2 -ethylhexyl benzoate (CAS 5444 -75 -7) is based on the criteria set out in the "Guideline on information requirements and chemical safety assessment, Chapter R. 11: PBT Assessment" (ECHA 2017).

 

Persistence:

For 2 -ethylhexyl benzoate a study on "ready biodegradability" according to OECD 310 was conducted resulting in 76.5% biodegradation after 28 days based on CO2 -evolution. Thus, the test substance does not meet the screening criterion for persistency and it is not considered to be persistent (P) or very persistent (vP).

 

Bioaccumulation:

2-ethylhexyl benzoate is not expected to be bioaccumulative. Due to its readily biodegradable nature, extensive degradation of this substance in conventional STPs will take place and only low concentrations are expected to be released (if at all) into the environment. Once present in the aquatic compartment, further biodegradation will occur and, due to the high log Kow, low water solubility and high adsorption potential, the 2-ethylhexyl benzoate will be bioavailable to aquatic organisms such as fish mainly via feed and contact with suspended organic particles. After uptake by fish species, extensive and fast biotransformation of the substance by carboxylesterases into benzoic acid and the corresponding alcohol is expected. The supporting BCF/BAF values estimated with the BCFBAF v3.01 program, Arnot-Gobas model including biotransformation, also indicate that this substance will not be bioaccumulative (all well below 2000 L/kg). For detailed argumentation see CSR-chapter 4.3.

 

Toxicity:

After testing of 2 -ethylhexyl benzoate on aquatic organisms no effects were observed at maximum attainable concentrations. The substance is classified as toxic to reproduction (category 1B), based on developmental effects seen in a study according to OECD 414 and is therefore meeting the criteria for "T".