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EC number: 204-066-3
CAS number: 115-11-7
No toxicologically significant changes were
observed at dose levels up to 148.6 mg isobutylene/kg/day administered
orally to rats over 28 days. There were no treatment-related changes in
viability, clinical condition, body weight, food consumption and gross
pathology or histopathology. Slight changes in haematology and clinical
chemistry and organ weights were observed, but the values
remained within what was considered the normal range. A NOAEL of 148.55
mg/kg/day was established.
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