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CAS Number: &nbsp; 23647-14-5
Formula: &nbsp; C 16 H 9 N 2 Na 3 O 11 S 3
F.W: &nbsp; 570.42

+92-42-37312378

5-Dihydroxy-3-(4-Sulfophenylazo)-2,7-Naphthalenedisulfonic Acid trisodium salt; SPADNS; p-Sulfophenylazochromotropic Acid trisodium salt

Specifications

Solubility 0.1% (dist. Water)................................................................. Clear Red Solution

Absorptivity 1% / 1cm,

at λ max.508.0 nm ................................................................................... >350

Dye Content (by spectrophotometry) ..............................................>80%

Loss on Drying (110°C) ...........................................................................<10%

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