Supplier Page from Thermo Fisher Scientific for Tin(IV) 2-ethylhexanoate diisopropoxide, 98% (metals basis)
2-Ethylhexanoic acid, 99% from Thermo Fisher Scientific
D-Sorbitol, 97% from Thermo Fisher Scientific
Methyl acetoacetate, 99+% from Thermo Fisher Scientific
Sulfur trioxide pyridine complex, technical, 48-50% active SO3 from Thermo Fisher Scientific