A methylated fatty acid methyl ester; has been found in S. zeai sea sponges as the fatty acyl component of zeamide, A. indica leaf extract, and C. vulgaris and H. pluvialis microalgae; major component of the vancomycin-induced biofilm produced by VRSA; has been used as a standard for the quantification of 14-methyl pentadecanoic acid in various foods by GC-MS