Ponceau S (C.I.27195) [6226-79-5]

Ponceau S (C.I.27195) [6226-79-5] is a well-characterized compound with a complex molecular structure, featuring a Molecular Formula of C22H12N4Na4O13S4 and a Molecular Weight of 760.57. This compound belongs to the class of Azo Dyes, known for their vibrant colors derived from the presence of azo groups (-N=N-). As a dark red or brown powder, Ponceau S is soluble in water and passes the test for suitability in electrophoresis. It exhibits a high dye content, with at least 75.0% by spectrophotometry, and boasts a Specific Absorptivity of over 460 at 1% concentration and 1 cm path length. This specific product offering, identified by the Product Number AC100072315, features a dye content of at least 75.0%, ensuring consistent performance in various applications. With its rich color and excellent solubility, Ponceau S serves as an effective stain and indicator in numerous fields, including biochemistry and food science.

• CAS Number: 6226-79-5
• Absorption maximum in water: 517 - 523 nm
• Harmonised Tariff Code: 3212900000
• Molecular Formula: C22H12N4Na4O13S4
• Dye content (by spectrophotometry): ≥ 75.0 %
• Molecular Weight: 760.57
• Categories: Stains & Indicators
• Appearance: Dark Red or brown powder