[tdod]

Maleic anhydride:
{MOD Edit: remove link to Google of link to Wikipedia commons of link to Wikipedia of tiny png file, sheesh}

Mass spec:


I have the mass spec, but I can't figure out how it is fragmenting... nothing in my textbook to help with this kind of molecule, and my professor is a bum :/

Any help would be greatly appreciated.


Thanks!

[discodermolide]

Well first find out which peak represents the molecular ion, then practice your subtraction skills. Then see if you can assign a reasonable structure to the result of the subtraction.