What's the plural form of benzoxazolone? Here's the word you're looking for.
Answer
The noun benzoxazolone can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be benzoxazolone.
However, in more specific contexts, the plural form can also be benzoxazolones e.g. in reference to various types of benzoxazolones
or a collection of benzoxazolones.