Supplier Page from Thermo Fisher Scientific for 1,8-Naphthalic anhydride, 97%
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
Ethyl 4-bromocrotonate, 75%, tech from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific