Figure 4.

Tandem mass spectra of the Δ-unsaturated dp6 derived from standard preparations of CSA (A), CSB (B), and CSC (C). The fragment ion assignments are shown in (D) for Δ-unsaturated dp6 derived from CSA.

Tandem mass spectra of the Δ-unsaturated dp6 derived from standard preparations of CSA (A), CSB (B), and CSC (C). The fragment ion assignments are shown in (D) for Δ-unsaturated dp6 derived from CSA.