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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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Groups of 5 male and 5 female Sprague Dawley rats (fasted overnight) were dosed by gavage at levels of 500, 794, 1260 or 2000 mg/Kg DCPD and were observed daily for 14 days after dosing. At the 4 hour observation period rats dosed with high levels of DCPD (1260 or 2000 mg/Kg bw) had hunched posture, piloerection, lethargy and decreased respiratory rate, with ptosis and occasional signs of ataxia seen in those dosed at 2000 mg/Kg bw . All rats dosed at 1260 or 2000 mg/Kg bw died one or two days after dosing. Haemorrhagic lungs, dark liver and sloughing of the non-glandular gastric epithelium was seen in decedents.
The LD50 was calculated to be 590 mg/Kg bw (male/female), 512 mg/Kg bw for males and 676 mg/Kg bw for females.
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