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