numbering polycyclic molecules

[epsilonprodigy]

---

Members do not see this ad.

Anyone know how to number really heinous-looking multi-ringed structures? Example: cortisol. Could not copy and paste the picture.

 

[Catburr]

Steroids are conventionally numbered like this:

https://secure.wikimedia.org/wikipedia/en/wiki/Steroid#Structure

I wouldn't try to memorize that. It's something that would be given in a passage if you needed it.