Subheading 2934.30 · Section VI
2934.30
Heterocyclic compounds; containing in the structure, a phenothiazine ring-system (whether or not hydrogenated), not further fused
29 Organic chemicals
2934 Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds
2934.30 Containing in the structure, a phenothiazine ring-system (whether or not hydrogenated), not further fused
Other subheadings under 2934