Sr.No. Chemical Name CAS No. Used for 
Clomipramine Hydrochloride
1 10,11-Dihydro-5H-dibenzo[b,f]azepine 494-19-9 Imp E as per EP
2 3-Chloro-10,11-dihydro-5H-dibenzo[b,f]azepine 32943-25-2 Imp F as per EP
3 Deschloro impurity 113-52-0 Imp B as per EP