5. Calculate DU. Identify key functional group(s). Propose chemical structure for the following compound (1 point): Formula: C4H100 FTIR signals: LOD D 4000 2000 150g 1000 500 HAVENUHBERI-1 1H NMR: 5 0 PPM 13C NMR: 1 1 200 | BO 180 160 140 120 100 60 40 20 CDS-03-352 pom Answers: DU (0.25 points): Key Functional group(s) (0.25 points): Structure (0.5 points)