Description
SPECIFICATIONS
CAS 143205-66-7
Name: 2-(5-Nitro-2-pyridylazo)-5-(N-propyl-3-sulfopropylamino)
phenol disodium salt , dihydrate
Molecular weight: 503.45
Molecular formula: C17H19N5Na2O6S.2H2O
Appearance: Dark green or dark green brown powder
Purity: > 90%
Molar absorptivity: > 50 000 (450 nm)
Absorbance: < 0.06 (566 nm) (9.9 x 10-6 M in buffer)
Water content: < 10%
Solubility: 5 mg/10 ml water
Storage: 2 – 8 °C. Keep tightly closed. Protect from metal.
Stability: At least one year at 2 – 8 °C.