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EC number: 941-793-1
CAS number: 32199-97-6
This test was performed in principle as described in OECD Guideline 403
without GLP compliance.
3 rats per sex were exposed sequentially to the vapor, generated by
bubbling 200 1/h air through a substance column of about 5 cm above a
fritted glass disc in a glass cylinder for 3 hours and 8 hours.
Documentation of clinical signs and mortality was performed over 7 days.
No mortality occured in this study after 3hours-exposure. Exposure of
8hours conducted to one dead animal after 24h, one dead animal after 48h
and one dead animal after 72h, so that half of the animals were dead
The classification criteria for acute inhalation toxicity relate to a 4h
experimental exposure period. After adjustment to a 4h-equivalent by
Haber´s law (c^n*t=constant), an LC50 of 1,67 mg/l/4h could be
calculated and therefore the test item should be classified as
inhalation toxic category 2. (BASF, 1975)
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