P7170

Ponceau S solution

BioReagent, suitable (for use in cellulose acetate electrophoresis), 0.1 % (w/v) in 5% acetic acid

• Synonym(s): Ponceau S
• Empirical Formula (Hill Notation): C₂₂H₁₂N₄Na₄O₁₃S₄
• CAS Number: 6226-79-5
• Molecular Weight: 760.57
• MDL number: MFCD00003892
• UNSPSC Code: 12171500
• PubChem Substance ID: 24898827

Properties

• product line: BioReagent
• Quality Level: 200
• form: liquid
• concentration: 0.1 % (w/v) in 5% acetic acid
• density: 1.01 g/cm³ at 20 °C
• suitability: suitable (for use in cellulose acetate electrophoresis); suitable for electrophoresis
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: [Na+].[Na+].[Na+].[Na+].Oc1c(\N=N\c2ccc(cc2S([O-])(=O)=O)\N=N\c3ccc(cc3)S([O-])(=O)=O)c4ccc(cc4cc1S([O-])(=O)=O)S([O-])(=O)=O
• InChI: 1S/C22H16N4O13S4.4Na/c27-22-20(43(37,38)39)10-12-9-16(41(31,32)33)6-7-17(12)21(22)26-25-18-8-3-14(11-19(18)42(34,35)36)24-23-13-1-4-15(5-2-13)40(28,29)30;;;;/h1-11,27H,(H,28,29,30)(H,31,32,33)(H,34,35,36)(H,37,38,39);;;;/q;4*+1/p-4/b24-23+,26-25+;;;;
• InChI key: KQHKSGRIBYJYFX-WNDMICSESA-J

Description

General description

Ponceau S is the sodium salt of a diazo dye. Ponceau S solution is a suitable reagent for use in electrophoresis studies. The Ponceau S stain comes ready-to-use and is designed for rapid (5 min) staining of protein bands on nitrocellulose or PVDF membranes (Western blots) and also for staining protein on cellulose acetate membranes. It may be employed as stain for the purified fibrinolytic enzyme (CK) for the analysis of N-terminal amino acid sequence of the first 14 residues of CK by a protein sequencer. Ponceau S staining on nitrocellulose and PVDF is reversible by washing the stained membrane with 0.1M NaOH for 1 minute. The stained and destained membrane can then be immunologically detected (Western blotting). A product information sheet is supplied which includes the staining procedure for cellulose acetate, nitrocellulose, and PVDF.

Application

Ponceau S solution has been used for membrane staining (Western blotting).

Safety Information

• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable