4-Amino-3-hydroxy-1-naphthalenesulphonic acid in ACS Reagent grade water ≥90%, Sigma-Aldrich®
398969-25G
:
- Pack type:Glass bottle for solids
- Pk:25 g
- Seq:3308
- Appearance (Colour):White to Red and Pink and Faint Purple to Purple
- Appearance (Form):Powder
- Infrared spectrum:Conforms to Structure
- Purity (Titration by NaOH):≥ 90.0%
- Residue on ignition (Ash):≤0.1%
- Solubility (Turbidity)
0.1 g/3 ml, 1% Sodium Carbonate Diluted to 10 ml in H₂O:Pass - Sulphate:≤0.2%
- Additional Test
Sensitivity to Phosphate Test:Pass - Meets ACS Requirements:Current ACS Specification
:
:239.25 g/mol
:13,00453
:466 °C (1013 hPa)
:∼285 °C
:M-Clarity™ quality level = MQ200
:Ambient
:204-147-3
:116-63-2
:C₁₀H₉NO₄S
:MFCD00004019