Supplier Page from Thermo Fisher Scientific for Sodium 1-pentanesulfonate, 99% (dry wt.), water <1.5%
4-Fluoroaniline, 98% from Thermo Fisher Scientific
Emodin, 95%, tech from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific