Magnesium 8-anilinonaphthalene-1-sulphonate hydrate ≥95% (by perchloric acid titration) for fluorescence, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY
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A5144-25G A5144-5G
A5144-25GEA 252 GBP
A5144-25G A5144-5G
Magnesium 8-anilinonaphthalene-1-sulphonate hydrate ≥95% (by perchloric acid titration) for fluorescence, Sigma-Aldrich®
Magnesium 8-anilinonaphthalene-1-sulphonate hydrate

ANSA (8-Anilino-1-naphthalenesulfonic acid) is a hydrophobic polarity sensitive fluorescent dye useful as a site probe to detect conformational changes in cell and micelle membranes and molecules such as proteins. ANSA is also used as a fluorescent probe for the estimation of the critical micelle concentration (CMC) of surfactants.

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Specification Test Results

Appearance (colour) Faint green to green
Appearance (form) Powder
Titration (nt) HClO₄ 0.1 m Anhydrous basis
Purity (TLC area %) ≥ 95 %
Solubility (colour) Green to very dark green and brown to very dark brown
Solubility (turbidity) Clear to very hazy
Solubility (method) 50 mg/ml in water
Water Report result
Recommended retest period 36 months


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