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EC number: 310-013-6 | CAS number: 102110-15-6 A complex combination of hydrocarbons obtained by distillation of the products from a steam-cracking process. It consists predominantly of hydrocarbons having carbon numbers of C5 and dicyclopentadiene and boiling in the range of approximately 30°C to 170°C (86°F to 338°F).
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All statistically significant differences from control were considered to be of no toxicological significance.
Chronic toxicity of inhaled toluene was assessed in Fischer-344 rats exposed to 0, 30, 100 or 300 ppm 6 h/day, 5 days/week for 6, 12 or 18 months. There were no toxicologically significant effects on bodyweight, clinical signs, ophthalmoscopy, haematology, blood and urine clinical chemistry, organ weights or gross and microscopic pathology.
The NOAEC for chronic systemic and local toxicity from this study was 300 ppm (1131 mg/m3) for an exposure duration of 18 months.
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