Supplier Page from Aladdin Scientific Corporation for Formaldehyde solution (for vaccine)
2,4-Difluoro-5-formylbenzonitrile from Aladdin Scientific Corporation
3-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid from Aladdin Scientific Corporation
5-(Aminosulfonyl)-2-methylbenzoic acid from Aladdin Scientific Corporation
Boc-3,4-dimethoxy-l-phenylalanine from Aladdin Scientific Corporation