1-(2-methyl-4-(2-methylphenylazo)phenylazo)-2-naphthol

Short-term toxicity to fish

Link to relevant study record(s)

Reference

Endpoint:

short-term toxicity to fish

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is highly insoluble in water, hence indicating that aquatic toxicity is unlikely to occur

Description of key information

Short term toxicity to fish:

In accordance with column 2 of Annex VIII of the REACH regulation, testing for this end point is considered scientifically not necessary since there are mitigating factors indicating that aquatic toxicity is unlikely to occur as the test chemical is highly insoluble (solubility: 0.023 mg/L at 25° C) in water and also having the partition coefficient value ranging from 6.66 to 6.87, respectively. Thus, test chemical can be considered to be hydrophobic in nature.

 

Additional information

Short term toxicity to fish:

In accordance with column 2 of Annex VIII of the REACH regulation, testing for this end point is considered scientifically not necessary since there are mitigating factors indicating that aquatic toxicity is unlikely to occur as the test chemical is highly insoluble (solubility: 0.023 mg/L at 25° C) in water and also having the partition coefficient value ranging from 6.66 to 6.87, respectively. Thus, test chemical can be considered to be hydrophobic in nature.