NILE CHEMICALS

THYMOLPHTHALEIN

SPECIFICATION SHEET

CAS No. 125 - 20 - 2
Chemical Formula C28H30O4
Molecular Weight 430.54
Melting Point 251 - 253 c
Dye Content ~95%
Solution Clarity (Ethanol) To pass
Absorption Max pH10.5 592 - 596 nm
Absorptivity (1%,1cm) pH10.5 1034
Transition Range pH 9.3 - 10.5
Colourless - Blue
Loss On Drying (110 c) < 3%

MSDS

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