Supplier Page from Thermo Fisher Scientific for Sulfur trioxide-trimethylamine complex, 95%
L(-)-Menthol, 99.5% from Thermo Fisher Scientific
L(+)-Glutamine, 99% from Thermo Fisher Scientific
Maleic acid, 99% from Thermo Fisher Scientific
Trimethyloxonium tetrafluoroborate, 95% from Thermo Fisher Scientific