tetrazolopyrimidine
tetrahydropyrimidine
trimethylpyridine
ethylpyrimidine
tetrachlorophenol
aminotetrazole
triarylpyridine
dimethylpyrrolidine
tetrahydronicotinamide
alkylpyrimidine
benzoylpyridine
diphenyltetrazolium
tetrazolyl
tetrazolo
benzylpyridine
methylpyridazine
tetrafluorobenzoquinone
tetrafluorophenyl
methylpyridine
imidazotetrazine
tetrachlorocyclohexene
phenyltetrazolium
tetrahydrotriazine
iodopyrazine
pyridinyl
tetracosanoic
tetrachlorocyclohexenol
cyclopyrimidine
scytalone
methylpyrazine
terpyridyl
iodopyridine
thiophane
hydroxypyrimidine
triphenyltetrazolium
neomangicol
aryloxypyrimidine
isocryptolepine
pyrimidopteridine
chloropyrazine
cycline
oxanol
mercaptopyridine
phenylpyridine
tetrachlorophenolphthalein
ligustrazine
pyrimidinyl
tetrahydroxyanthradione
azolopyrimidine
trimethylphenanthrene