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SPADNS AR

1,8-Dihydroxy-2-(4-sulfophenylazo)naphthalene-3,6-disulfonic acid trisodium salt

Product Size 10gm/25gm Grade Analytical Reagent (AR)
Purity CAS No. 23647-14-5
Molecular Formula C16H9N2O11S3Na3 Molecular Weight 570.42
H.S. Code 29270000 Shelf Life 60 months
MSDS Certificate of Analysis (COAs)

Specifications

Absorption Maxima at pH : 7.0 505-510 nm
Absorptivity 1%, 1 cm at ? max. Min 380.0
Loss on drying at 105°C Max 10.0%
Suitability as metal indicator Passes test

Safety Information and Hazard Symbols
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