Supplier Page from Aladdin Scientific Corporation for sodium 5-oxo-L-prolinate
(6S)-4-oxo-5-azaspiro[2.4]heptane-6-carboxylic acid from Aladdin Scientific Corporation
4-oxa-7-azaspiro[2.5]octan-6-one from Aladdin Scientific Corporation
D-Glutamic acid from Aladdin Scientific Corporation
Famotidine from Aladdin Scientific Corporation