Supplier Page from Thermo Fisher Scientific for B-Tribromoborazine, 96%
4-Bromobutyric acid, 98% from Thermo Fisher Scientific
DL-Menthol, 99% from Thermo Fisher Scientific
Sulfanilamide, 98% from Thermo Fisher Scientific
Sulfur trioxide pyridine complex, technical, 48-50% active SO3 from Thermo Fisher Scientific