Metabolites are produced during metabolism by breaking down of food, drugs, chemicals and tissues in the body. 

CAS Number
50-48-6
Alternate CAS Number
549-18-8(HCl Salt)
CAS Number
72-69-5
Alternate CAS Number
894-71-3 (Nortriptyline Hydrochloride)
CAS Number
2227589-22-0
Alternate CAS Number
2408380-71-0 (Potassium salt)