Supplier Page from Aladdin Scientific Corporation for (2S)-1-tert-butoxycarbonyl-2-methyl-5-oxo-pyrrolidine-2-carboxylic acid
2,4-Difluoro-5-formylbenzonitrile from Aladdin Scientific Corporation
3-Chloro-2-methoxyphenylboronic acid (contains varying amounts of Anhydride) from Aladdin Scientific Corporation
4-(4-Hydroxyphenoxy)benzoic Acid from Aladdin Scientific Corporation
Nα-(tert-Butoxycarbonyl)-L-tryptophan N-Succinimidyl Ester from Aladdin Scientific Corporation