This is the 2-dimensional chemical structure of glycerol monostearate.  The drawing was done in ACD/ChemSketch v11.02 (using standard ACS structure drawing style) and saved as an uncompressed bitmap.  This image was padded with margins in IrfanView v4.2.  Finally, the bitmap was "traced" in Inkscape v0.46 to yield a vector graphics version with negligible quality loss.
Own work
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