Crossword clue: a sirupy, nontoxic ptomaine, c5h14n2 (chemically pentamethylene diamine), formed in putrefaction of flesh, etc.

The most common answer is cadaverin (9 letters).

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

cadaverin 9 letters web-def

A sirupy, nontoxic ptomaine, C5H14N2 (chemically pentamethylene diamine), formed in putrefaction of flesh, etc.

cadaverine 10 letters web-def

a colorless toxic ptomaine with an unpleasant odor formed during the putrefaction of animal tissue