PONCEAU S
PONCEAU S For Electrophoresis
C.I.No.27195It is used to prepare a stain for rapid reversible detection of protein bands on nitrocellulose or polyvinylidene fluoride membranes (Western blotting), as well as on cellulose acetate membranes.
Short Name: PONCEAU S
Synonym: Acid Red 112, 3-Hydroxy-4-(2-sulfo-4-[4-sulfophenylazo]phenylazo)-2,7-naphthalenedisulfonic acid sodium salt
Basic Details
Article No.
LG3635
Grade
For Electrophoresis
Purity
CAS No.
6226-79-5
HS Code
3204.9000
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
Dark red crystalline
Odour
Characteristic odour
pH value
9 at 10 g/l at 20 °C
Solubility in water [% weight]
Soluble in water
Chemical Specifications
Appearance
A dark red crystalline powder
Absorption maxima in water
517 - 523 nm
Specific absorptivity 1%/1cm (at λmax)
Min 460
Loss on drying (at 110°C)
Max 10%
Suitability (for electrophoresis)
Passes test
Safety Information & Hazard Symbols
Symbol
GHS07
Signal Word
Warning
Hazardous Statement
H315-H319-H335
Precaution Statement
P261-P305 + P351 + P338