Supplier Page from Aladdin Scientific Corporation for L-Tyrosine ethyl ester hydrochloride
(R)-(-)-Rolipram from Aladdin Scientific Corporation
2-oxa-5,8-diazaspiro[3.5]nonane dihydrochloride from Aladdin Scientific Corporation
6-Bromo-5,7-difluoroquinoline from Aladdin Scientific Corporation
D-Glutamic acid from Aladdin Scientific Corporation