Duokvin

Formula : C27-H34-N2
CAS : 120509-24-2 

(assumed 2, 2, 4-trimethyl; article omitted 3rd locant; compound may be 129622-87-3).

Duopect

Formula :
CAS : 76404-10-9 

Combination of narcotine & glycerol guaiacolate; used as an expectorant antitussive agent.