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EC number: 200-543-5
CAS number: 62-56-6
Table 1: Individual and mean body weights (g) of rats exposed to an
aerosol of a 10 % solution of “Thioharnstoff” in rats
Animal code earmarks
Mean body weight
0: day of exposure
omitted because unreliable
In an acute inhalation toxicity study one dose group (5 males, 5
females) of SPF-reared rats (Cpb; WU, Wistar random) were exposed (whole
body) to a fine mist of 10 % thiourea in water for 4 hours. Animals were
then observed for 14 days.
One male died on the first day of the observation period. During the
first 30 min restlessness was observed. Thereafter the rats were
motionless and their eyes were half-closed. After the exposure the rats
were slow in their movement, but otherwise looked normal.
The LC50 was determined to be higher than 195 mg/m³ (maximum
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