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Ponceau S solution_Molecular_structure_CAS_6226-79-5)
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Ponceau S solution

Catalog No. P7170 Name Sigma Aldrich
CAS Number 6226-79-5 Website http://www.sigmaaldrich.com
M. F. C22H12N4Na4O13S4 Telephone 1-800-521-8956
M. W. 760.56876 Fax
Purity Email
Storage Chembase ID: 103486

SYNONYMS

IUPAC name
tetrasodium 3-hydroxy-4-[(E)-2-{2-sulfonato-4-[(E)-2-(4-sulfonatophenyl)diazen-1-yl]phenyl}diazen-1-yl]naphthalene-2,7-disulfonate
IUPAC Traditional name
tetrasodium 3-hydroxy-4-[(E)-2-{2-sulfonato-4-[(E)-2-(4-sulfonatophenyl)diazen-1-yl]phenyl}diazen-1-yl]naphthalene-2,7-disulfonate

DATABASE IDS

MDL Number MFCD00003892
CAS Number 6226-79-5
PubChem SID 24898827

PROPERTIES

Concentration 0.1 % (w/v) in 5% acetic acid
German water hazard class 1

DETAILS

Description (English)
Application
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. Ponceau S staining on nitrocellulose and PVDF is reversible by washing the stained membrane with 0.1 M NaOH for 1 min. 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.

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