Supplier Page from Thermo Fisher Scientific for Paraformaldehyde, 96%, extra pure
Ethyl 4-dimethylaminobenzoate, 99+% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific
N-Ethylaniline, 98% from Thermo Fisher Scientific