Products / pH Indicators

PYROGALLOL RED Print Download

C.A.S. No. 32638-88-3
M.F. C19H14O9S
M.W. 418.39gm/mole

Specifications:

Solubility 0.1% (0.1N NaOH) Clear solution
Absorption maximum (in acidic MeOH) ?max 474-478nm
Absorptivity 1%, 1cm (in acidic MeOH) at ?max >450
Loss on drying (110°C) <5%
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