Harmol

Formula : C12-H10-N2-O
CAS : 487-03-06 

Harmol is oxidized form of alkaloid harmolol.

Harmony hard

Formula :
CAS : 78849-13-5 

A dental casting alloy.

Harpagide

Formula : C15-H24-O10
CAS : 6926-08-05 

From S. African plant Harpagophytum procumbens DC.

Harpagoside

Formula : C24-H30-O11
CAS : 19210-12-9 

Glycoside of a cyclopenta[c]pyran from root of S. African plant Harpagophytum procumbens DC; Harpagophytum extract WS 1531 is plant extract containing harpagoside; Antidiabetic Agent.

Harpin

Formula :
CAS : 147979-36-0 

Activates plant's natural defences just as the jasmonic acid-ethylene pathways; an acidic, heat-stable cell envelope-associated 44 kDa protein; stimulates hypersensitive response in higher plants.

Harrisonin

Formula : C27-H32-O10
CAS : 62026-30-6 

From Nigerian Harrisonia abyssinica (SIMAROUBACEAE).