Hydroxyisolongifolaldehyde

Formula : C15-H24-O2
CAS : 83454-04-0 

Metabolite of longifolene in mammals.

Hydroxyisoneocoprogen I

Formula : C31-H47-Fe-N6-O13
CAS : 135500-11-7 

Siderophore; from phytopathogenic Alternaria longipes.

Hydroxyisonobilin

Formula : C20-H26-O6
CAS : 63549-62-2 

Sesquiterpene lactone.

Hydroxyitraconazole

Formula : C35-H38-Cl2-N8-O5
CAS : 112559-91-8 

A hydroxylated metabolite of itraconazole; likely contributes importantly to the in vivo activity attributed to itraconazole

Hydroxyl radical

Formula : H-O
CAS : 3352-57-6 

The univalent radical OH. Hydroxyl radical is a potent oxidizing agent.

Hydroxylamine

Formula : H3-N-O
CAS : 7803-49-8 

A colorless inorganic compound (HONH2) used in organic synthesis and as a reducing agent, due to its ability to donate nitric oxide.