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Ecotoxicological information

Toxicity to microorganisms

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Endpoint:
toxicity to microorganisms, other
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Justification for type of information:
Please refer to the Category Approach Justification provided in Section 13
Reason / purpose:
read-across source
Duration:
16 h
Dose descriptor:
EC10
Effect conc.:
> 10 000 mg/L
Nominal / measured:
nominal
Conc. based on:
act. ingr.
Basis for effect:
growth inhibition
Duration:
16 h
Dose descriptor:
EC50
Effect conc.:
> 10 000 mg/L
Nominal / measured:
nominal
Conc. based on:
act. ingr.
Basis for effect:
growth inhibition
Endpoint:
toxicity to microorganisms, other
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
supporting study
Justification for type of information:
Please refer to the Category Approach Justification provided in Section 13
Reason / purpose:
read-across source
Duration:
16 h
Dose descriptor:
EC10
Effect conc.:
> 10 g/L
Nominal / measured:
nominal
Conc. based on:
act. ingr.
Basis for effect:
growth inhibition
Duration:
16 h
Dose descriptor:
EC50
Effect conc.:
> 10 g/L
Nominal / measured:
nominal
Conc. based on:
act. ingr.
Basis for effect:
growth inhibition

Description of key information

EC10 (16 h) > 10000 mg a.i./L (nominal) for Pseudomonas putida.

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
10 000 mg/L

Additional information

For microorganisms no studies on toxic effects AES (C9 -11, 1 -2.5EO) Na (CAS 160901 -28 -0) are available. Therefore, a read-across approach from AES (C12 -14, 1 -2.5EO) Na (CAS 68891 -38 -3) and AES (C12 -14, 1 -2.5EO) MIPA (CAS 1187742 -72 -8) was applied.

Both studies were performed following the procedures of DIN 38412, part 8 and GLP. Based on growth inhibition EC10 values > 10000 mg/L for Pseudomonas putida were observed in both tests after 16 hours (Sasol, 1993, 1999).