Anyone have a better knowledge of why fatty acids appear in circumstances
where high dielectric strength/ good insulation is needed. Hence the "fishy
smell" of physically broken/leaking electrolytic capacitors.
Possible candidates ( from Googling ie no specialised knowledge on this )
eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) and degradation
product 2,4-heptadienal/2,4-hepadienal ?
, PETEP oil (Penta- Etythrite-Tetra Fatty Acid Polyester oil)

And in the case of rotted horse manure smell from some types of old
transformer windings perhaps Caproic Acid or Hexanoic acid giving that smell