Supplier Page from Aladdin Scientific Corporation for Technical pH Buffer solutions（pH 4.01±0.02）
(6S)-4-oxo-5-azaspiro[2.4]heptane-6-carboxylic acid from Aladdin Scientific Corporation
(S)-1-Boc-3-(hydroxymethyl)piperidine from Aladdin Scientific Corporation
1,3,5-Trimethyl-4-(tributylstannyl)-1H-pyrazole from Aladdin Scientific Corporation
3-Chloro-2-methoxyphenylboronic acid (contains varying amounts of Anhydride) from Aladdin Scientific Corporation