Subheading 293311: Heterocyclic Compounds; with Nitrogen Hetero-atom(s) Only, Co … etc.
Subheading 293319: Heterocyclic Compounds; with Nitrogen Hetero-atom(s) Only, Co … etc.
Subheading 293321: Heterocyclic Compounds; with Nitrogen Hetero-atom(s) Only, Co … etc.
Subheading 293329: Heterocyclic Compounds; with Nitrogen Hetero-atom(s) Only, Co … etc.
Subheading 293331: Heterocyclic Compounds; Containing an Unfused Pyridine Ring ( … etc.
Subheading 293332: Heterocyclic Compounds; Containing an Unfused Pyridine Ring ( … etc.
Subheading 293333: Heterocyclic Compounds; Containing an Unfused Pyridine Ring … etc.
Subheading 293334: Heterocyclic Compounds; Containing an Unfused Pyridine Ring … etc.
Subheading 293335: Heterocyclic Compounds; Containing an Unfused Pyridine Ring ( … etc.
Subheading 293336: Heterocyclic Compounds; Containing an Unfused Pyridine Ring ( … etc.
Subheading 293337: Heterocyclic Compounds; Containing an Unfused Pyridine Ring ( … etc.
Subheading 293339: Heterocyclic Compounds; Containing an Unfused Pyridine Ring ( … etc.
Subheading 293341: Heterocyclic Compounds; Containing a Quinoline or Isoquinolin … etc.
Subheading 293349: Heterocyclic Compounds; Containing a Quinoline or Isoquinolin … etc.
Subheading 293352: Heterocyclic Compounds; Containing a Pyrimidine Ring (whether … etc.
Subheading 293353: Allobarbital (Inn), Amobarbital (Inn), Barbital (Inn), Butalb … etc.
Subheading 293354: Heterocyclic Compounds; Containing a Pyrimidine Ring (whether … etc.
Subheading 293355: Heterocyclic Compounds; Containing a Pyrimidine Ring (whether … etc.
Subheading 293359: Heterocyclic Compounds; Containing a Pyrimidine Ring (whether … etc.
Subheading 293361: Heterocyclic Compounds; Containing an Unfused Triazine Ring ( … etc.
Subheading 293369: Heterocyclic Compounds; Containing an Unfused Triazine Ring ( … etc.
Subheading 293371: Heterocyclic Compounds; Lactams; 6-Hexanelactam (Epsilon-capr … etc.
Subheading 293372: Heterocyclic Compounds; Lactams; Clobazam (Inn) and Methypryl … etc.
Subheading 293379: Heterocyclic Compounds; Lactams; other than 6-Hexanelactam (E … etc.
Subheading 293391: Heterocyclic Compounds; Alprazolam (Inn), Camazepam (Inn), Ch … etc.
Subheading 293392: Heterocyclic Compounds; Azinphos-methyl (Iso)
Subheading 293399: Heterocyclic Compounds; N.E.C. in Headings no. 2933