Ponceau S, Electrophoresis Grade

CAS: 6226-79-5

Ref. 02-J60744

Product Information

• Name: Ponceau S, Electrophoresis Grade
• Synonyms: ponceau S, 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[2-[2-sulfo-4-[2-(4-sulfophenyl)diazenyl]phenyl]diazenyl]-, sodium salt (1:4), 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[[2-sulfo-4-[(4-sulfophenyl)azo]phenyl]azo]-, tetrasodium salt, 3-Hydroxy-4-[2-sulfo-4-(4-sulfophenylazo)phenylazo]-2,7-naphthalenedisulfonic acid, tetrasodium salt, Acid red 112, Ponceau Red S, Ponceau S Extra, Ponceau S solution, Tetrasodium 3-Hydroxy-4-(2-Sulphonato-4-(4-Sulphonatophenylazo)Phenylazo)Naphthalene-2,7-Disulphonat, tetrasodium 3-hydroxy-4-[(E)-{2-sulfonato-4-[(E)-(4-sulfonatophenyl)diazenyl]phenyl}diazenyl]naphthalene-2,7-disulfonate
• CAS: 6226-79-5

Description

Ponceau S dye is used to make a stain for rapid reversible staining of protein bands on nitrocellulose or PVDF membranes (Western blots) and also for staining protein on cellulose acetate membranes. It is also suitable for electrophoresis, azo dye for reversible protein staining. This stain can also be used as a fiducial marker in mass spectrometric imaging. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

• Brand: Alfa Aesar By Thermo Fisher Scientific

Chemical properties

• Molecular weight: 760.55
• Formula: C₂₂H₁₂N₄Na₄O₁₃S₄
• Color/Form: Red-brown to dark brown, Powder
• InChI key: LZYGEJPERQQCIY-STNZDNLRSA-J