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C 4 H 10 0. 300 MHz, CDCl 3. 3H (t). 2H (q). C 4 H 10 0. 300 MHz, CDCl 3. 3H (t). 2H (q). C 9 H 11 Cl. 90 MHz, CDCl 3. 2H. 5H. 2H. 2H. C 9 H 11 Cl. 90 MHz, CDCl 3. 2H. 5H. 2H. 2H. C 9 H 11 Cl. 90 MHz, CDCl 3. 6H. 3H. 2H. C 9 H 11 Cl. 90 MHz, CDCl 3. 6H. 3H. 2H.
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