Product Catalog → Chemical Synthesis → Building Blocks → Heterocyclic Building Blocks

Heterocyclic Building Blocks

Halogenated Heterocycles - (1015)

Acridines - (13)

Benzimidazoles - (67)

Benzodioxanes - (14)

Benzofurans - (44)

Benzopyrans - (93)

Benzothiophenes - (46)

Benzotriazoles - (13)

Benzoxazines - (29)

Carbazoles - (26)

Coumarins - (76)

Homopiperidines - (6)

Imidazoles - (145)

Imidazolines/Imidazolidines - (50)

Indazoles - (13)

Indoles - (307)

Indolines - (11)

Isoquinolines - (47)

Isoxazoles - (69)

Morpholines - (55)

Oxadiazoles - (19)

Oxazoles - (42)

Oxazolines/Oxazolidines - (29)

Piperazines - (194)

Piperidines - (183)

Piperidones - (43)

Pyrazines - (59)

Pyrazoles - (161)

Pyridazines - (32)

Pyridines - (927)

Pyrimidines - (265)

Pyrroles - (77)

Pyrrolidines - (88)

Pyrrolines - (13)

Quinaldines - (14)

Quinazolines - (36)

Quinolines - (190)

Quinoxalines - (24)

Quinuclidines - (14)

Tetrazoles - (31)

Thiadiazoles - (32)

Thiazines - (15)

Thiazoles - (198)

Thiazolines/Thiazolidines - (18)

Thiophenes - (227)

Triazines - (59)

Triazoles - (44)

© 2008 Sigma-Aldrich Co. Reproduction forbidden without permission.
Sigma-Aldrich brand products are sold exclusively through Sigma-Aldrich, Inc. Best viewed in IE6 or higher