Supplier Page from Thermo Fisher Scientific for Benzyltrimethylammonium hydroxide, 40% w/w in methanol
1-Heptanol, 98% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Maleic acid, 99% from Thermo Fisher Scientific
Sulfur trioxide pyridine complex, technical, 48-50% active SO3 from Thermo Fisher Scientific