The number that is blocked out says 423 2H q J7Hzthanks Prov

The number that is blocked out says \"4.23 (2H, q, J=7Hz)\"thanks!

Provides a structure for the following compound: EI mass spectrum :two molecular ions of about equal intensity at m/z = 180 and 182; IR: 1740 cm-1; 1H NMR: delta 1.30 (3H, t J = 7 Hz); delta 1.80 (3H,d, J = Hz); delta4 =7Hz); delta 4.37 (1H, q,J = 7 Hz).

Solution