C
CHEMISTRY; METALLURGY
C08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08K
Use of inorganic or non-macromolecular organic substances as compounding ingredients
C08K5/00
Use of organic ingredients
C08K5/16
Nitrogen-containing compounds
C08K5/34
Heterocyclic compounds having nitrogen in the ring
C08K5/3467
having more than two nitrogen atoms in the ring
C08K5/3472
Five-membered rings
C08K5/3475
condensed with carbocyclic rings