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EIMS profile of fraction 4 (+ spathulenol) and the assignments of the main mass fragmentation peaks. MS [m/z]: 220 [M∙+], 205 [M–CH3]+, 203 [M–OH]+, 202 [M–H2O]∙+, 187 [M–CH3–H2O]+, 177 [M–CH3–C=O]+ or [M–CH3–CH2=CH2]+, 163 [C12H19]+, 159 [C12H15]+, 147 [C11H15]+, 145 [C11H13]+, 119 [C9H11]+, 117 [C9H9]+, 105 [C8H9]+, 91 [C7H7]+ (100%), 77 [C6H5]+, 67 [C5H7]+, 65 [C5H5]+, 51 [C4H3]+, and 43 [C3H7]+.
