Chemnovo Synthesis Pvt. Ltd.

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Chemnovo Synthesis Pvt. Ltd. - Driven by Chemistry, Defined by Precision

Product Datasheet and Specification

01781

1-Naphtholbenzein (pH Indicator)

Used as an indicator 0.1g in 100 ml 2-propanol. a-Naphtholbenzein; 4,4'-(a-Hydroxybenzylidene)di-1-naphthol; p-naphtholbenzein

CAS : 145-50-6

HS Code : 2914.50000

Molecular Formula : C27H18O2

Molecular Weight : 374.44

Shelf Life : 60 Months

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Appearance Dark red to red-brown to brown-black to orange-brown powder	Visual transition interval Yellow to greenpH 8.2 (yellow to orange) to pH 10 (green-blue)
Absorption maxima in acetic perchloric acid 0.1 mol/L 622 - 626 nm