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EC number: 252-667-4 | CAS number: 35674-65-8
In the acute oral toxicity study no death occurred up to the highest dose administered which amounted to 10000 mg/kg body weight.
The acute oral toxicity study demonstrated that the LD50 of WS400505 is higher than the limit dose of 2000 mg/kg b.w. The conduct of an acute dermal or inhalation toxicity study would not have added relevant toxicological hazard information
In the acute oral toxicity study, all animals survived a single dose of up to 10000 mg WS400505 per kg body weight. Therefore, classification of WS400505 for acute oral toxicity is not required [REGULATION (EC) 1272/2008].
Non-classification of WS400505 by the dermal route was reasonable, because of the absence of effects indicative of relevant systemic toxicity and/or local irritation and the absence of any relevant adverse effects in all available toxicity studies with WS400505.
Non-classification of WS400505 by the inhalation route was justified by its low vapour pressure making inhalation exposure of humans to any vapour phase unlikely.
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