Congo Red 4B is a fine chemical. It is supplied by Avra synthesis pvt. Ltd. Congo Red 4B is categorized as organic chemical compound that belongs to the class of azo dye. Congo Red 4B is used in the biological staining procedures as an indicator.Congo Red 4B is manufactured and packed under a closed, controlled and an inert environment to prevent contamination, which offers you better stability, minimal interference during analysis and high level of accuracy in your analytical results.

Product features:

• Appearance : Red powder
• Transition range : pH 3.0 - 5.0
• Solubility in 0.1% distilled water : Clear solution
• Absorptivity 1% ,1 cm,at lamba max : NLT 520
• Dye content (by spectrophotometry) : NLT 75.0%
• Loss on drying (110C) : NMT 5.0%
• Storage : Store at Room temperature
• Synonym : C.I. Direct Red 28; DIRECT RED 28; Congo red

Product specifications:

• Product name : Congo Red 4B
• Brand name : Avra Synthesis Pvt. Ltd.
• Catlog number : ASC2562.25gm
• CAS number : 573-58-0
• Molecular weight : 696.66
• Molecular formula : CHNNaOS
• Quantity : 25 gm