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1-Naphthol benzein (pH Indicator)

4-[(4-Hydroxy-1-naphthalenyl)phenylmethylene]-1(4H)-naphthalenone; p-Naphtholbenzein

Product Size 10gm/25gm Grade Analytical Reagent (AR)
Purity CAS No. 145-50-6
Molecular Formula C27H18O2 Molecular Weight 374.44
H.S. Code 29145000 Shelf Life 60 months

Specifications

pH Transition range
pH 8.5 Yellow
pH 9.8 Green

Safety Information and Hazard Symbols