The most common and most likely answer to this crossword clue is the 5 letter word IMINE
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More clues leading to the result IMINE
Buddy explains!
The straight part
We know that "Organic compound" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case organic compound = imine.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does IMINE mean?
IMINE noun- Any of a class of organic nitrogen compounds having the general formula R2C=NR; they are tautomeric with enamines.