Description
SPECIFICATIONS
CAS 158905-17-0
Chemical name: 2-(5-Bromo-2-pyridylazo)-5-(N-n-propyl-N-(3-
sulfopropyl) amino) phenol, disodium salt, dihydrate
Molecular formula: C17H19BrN4Na2O4S.2H2O
Molecular weight: 537.34
Appearance: Reddish brown crystalline powder
Water (Karl Fisher): 5 – 10 %
Solubility (50ml/100ml H2O): Clear, reddish orange
Absorbance (blank): < 0.04 (552nm) Absorbance: > 0.42
Sulfated ash: < 30 %
IR spectrum: Authentic
Storage: 2-8 °C. Protect from moisture and light
Stability: At least 12 months at 2-8°C.