Commodity200520092010
Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... $285 
Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... $284 
Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ...$375$3,822$10,422
Melamine$380  
Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ...$180 $1,281
Total$935$4,391$11,703