Diol
= Diol
A <diol> has two <hydroxy groups>. Its two groups can serve as joining ends in <polyaddition>; the rest of its <molecule> can already be a long chain.
= Diol
A <diol> has two <hydroxy groups>. Its two groups can serve as joining ends in <polyaddition>; the rest of its <molecule> can already be a long chain.