Ponceau S

• Catalog No.: P3504
• CAS Number: 6226-79-5
• M. F.: C22H12N4Na4O13S4
• M. W.: 760.56876

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
• Synonyms: 3-Hydroxy-4-(2-sulfo-4-[4-sulfophenylazo]phenylazo)-2,7-naphthalenedisulfonic acid sodium salt

DATABASE IDS

• EC Number: 228-319-2
• MDL Number: MFCD00003892
• PubChem SID: 24898418
• Color Index Number: 27195
• CAS Number: 6226-79-5

PROPERTIES

• Safety Statements: 26-36
• German water hazard class: 3
• GHS Signal Word: Warning
• GHS Hazard statements: H315-H319-H335
• European Hazard Symbols: Irritant (Xi)
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves
• GHS Precautionary statements: P261-P305 + P351 + P338
• Risk Statements: 36/37/38
• RTECS: QJ6600000
• Grade: practical grade

DETAILS

Description (简体中文)

Application
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. The following are two common stain formulations;0.1% Ponceau S (w/v) in 5% acetic acid2% Ponceau S (w/v) in 30% TCA, 30% sulfosalicylic acid
包装
10, 50, 100 g in glass bottle