What does a humic acid molecule look like?
There is no single answer: humic acid isn't one molecule. It is an operationally defined fraction of natural organic matter that dissolves in alkali and precipitates when acidified.
Its components can associate through hydrogen bonding, hydrophobic interactions, and metal bridging, and different sources produce different compositions.
CAS 1415-93-6 is a reminder that a CAS number does not always represent one precise molecular structure.
Global Chemical Database