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Hydroxy naphthol blue disodium 

Cat. No.: HY-W151206
Handling Instructions

Hydroxy naphthol blue disodium, an azo dye, is a metal indicator for calcium and a colorimetric reagent for alkaline earth metal ions ( λmax = 650 nm). In the pH range between 12 and 13, the solution of the indicator is reddish pink in the presence of calcium ion and to deep blue in the presence of disodium EDTA.

For research use only. We do not sell to patients.

Hydroxy naphthol blue disodium Chemical Structure

Hydroxy naphthol blue disodium Chemical Structure

CAS No. : 165660-27-5

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Description

Hydroxy naphthol blue disodium, an azo dye, is a metal indicator for calcium and a colorimetric reagent for alkaline earth metal ions ( λmax = 650 nm). In the pH range between 12 and 13, the solution of the indicator is reddish pink in the presence of calcium ion and to deep blue in the presence of disodium EDTA[1].

Molecular Weight

598.49

Formula

C20H12N2Na2O11S3

CAS No.
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Room temperature in continental US; may vary elsewhere.

Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

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Hydroxy naphthol blue disodium
Cat. No.:
HY-W151206
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