Magnesium 8-anilinonaphthalene-1-sulphonate hydrate ≥95%, Sigma-Aldrich®

Supplier: SIGMA-ALDRICH MICROSCOPY
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Synonyms: 8-Anilino-1-naphthalenesulphonic acid magnesium(II) salt, ANS-Mg, 1,8-ANS magnesium salt, N-Phenyl peri acid magnesium salt, ANSA magnesium salt, Magnesium 8-(phenylamino)naphthalene-1-sulphonate, Magnesium(II) 8-Anilino-1-naphthalenesulphonate, 8-Anilino-1-naphthalenesulphonic acid hemimagnesium salt hydrate

M-Clarity™ quality level = MQ200

10419-1G 10419-25G
10419-1GEA 38.5 EUR
10419-1G 10419-25G
Magnesium 8-anilinonaphthalene-1-sulphonate hydrate ≥95%, 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.

Formula: C₃₂H₂₄MgN₂O₆S₂·xH₂O
MW: 620,98 g/mol (anhy)
MDL Number: MFCD00065353
CAS Number: 18108-68-4
EINECS: 242-004-7

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Specification Test Results

Appearance (colour) Faint green to green
Appearance (form) Powder
Titration (NT) HClO₄ 0.1 m ≥95.0%
Purity (TLC area %) ≥95.0 %
Solubility (colour) Green to very dark green and brown to very dark brown
Solubility (turbidity) Clear to very hazy
Solubility (method) 50 mg/ml water, hot
Water 5.0 - 8.0%
Carbon content 58.50% (theory)
Hydrogen content 4.30% (theory)
Nitrogen content 4.26% (theory)
Infrared spectrum Conforms to structure
Emission maximum 465 - 475 nm
Remarks on luminescence Exc.:388 nm 0.1 M tris; 0.2 mkcl; ph 9.0; BSA
Recommended retest period 36 months

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