Ponceau S 是一种常见的、用于 Western blot 的染色剂。它以酸性水溶液形式使用，能够与抗体-抗原结合兼容，将膜上的蛋白质染成红色。

Ponceau S (Acid Red 112) is the most commonly used stain for Western blotting binding with antibody-antigen, and stains the proteins on the membrane red.

6226-79-5

C22H16N4NaO13S4

695.63

丽春红 S;Ponceau S Staining Solution;Acid Red 112

H2O:35 mg/mL (46.01 mM,Need ultrasonic
Powder: -20°C for 3 years
In solvent: -80°C for 2 years