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EC number: 223-267-7 | CAS number: 3794-83-0
After 14 day nose exposure inhalation to 0.5 mg/m3 and after 14 day recovery period there were no detectable histological alterations in the nose, larynx and trachea.
In a subacute repeated dose inhalation toxicity study, a salt of HEDP (actual salt tested not clear) was administered to Wistar rats, nose-only, for 14 days (length of exposure period per day not stated) at a concentration of 0.5 mg/m3. There was also a 14 day recovery period. There were no detectable histological alterations in the nose, larynx and trachea. Therefore the NOAEL was at least 0.5 mg/m3.
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