14-methylPentadecanoicacidmethylester is a methylated fatty acidmethylester that 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. It is a major component of the vancomycin-induced biofilm produced by vancomycin-resistant S. aureus (VRSA). 14-methylPentadecanoicacidmethylester has been used as a standard for the quantification of 14-methylpentadecanoicacid in various foods by GC-MS.