Trisodium 2-(4-Sulphophenylazo)-1,8-dihydroxynaphthalene-3,6-disulphonate (SPADNS) indicator grade

Supplier: Thermo Scientific Chemicals
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Synonyms: SPADNS, 2-(4-Sulphophenylazo)chromotropic acid trisodium salt, 4,5-Dihydroxy-3-(4-sulphophenylazo)-2,7-naphthalenedisulphonic acidtrisodium salt, 1,8-Dihydroxy-2-(4-sulphophenylazo)naphthalene-3,6-disulphonic acidtrisodium salt, Sulphanilic acid azochromotrope, 2-(p-sulphophenylazo)-1,8-Dihydroxy-3,6-Naphthalenedisulphonic acidtrisodium salt, Trisodium 1,8-Dihydroxy-2-(4-sulphophenylazo)naphthalene-3,6-disulphonate

15157-0100 15157-0250 15157-1000
TS15157-0100EA 42 USD
TS15157-0100 TS15157-0250 TS15157-1000
Trisodium 2-(4-Sulphophenylazo)-1,8-dihydroxynaphthalene-3,6-disulphonate (SPADNS) indicator grade
Trisodium 2-(4-Sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate (SPADNS)
Formula: C₁₆H₁₂N₂O₁₁S₃
MW: 570.40 g/mol
Storage Temperature: Ambient
MDL Number: MFCD00003952
CAS Number: 23647-14-5

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Specification Test Results

Appearance Dark red-brown Crystalline powder
Infrared spectrum Conforms
UV spectrum Complies
HPLC ≥96.0 %
Specific optical rotation -20° to -28° (20°C, 589 nm) (C=1 in MeOH)

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