Supplier Page from Thermo Fisher Scientific for Instrument Calibration(ICAL) Standards Kit, Specpure:r
4-Fluoroaniline, 98% from Thermo Fisher Scientific
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific