Ponceau S For Synthesis
C.I.No.27195 It 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.
Acid Red 112, 3-Hydroxy-4-(2-sulfo-4-[4-sulfophenylazo]phenylazo)-2,7-naphthalenedisulfonic acid sodium salt
Product Code. |
02058 |
Grade |
Electrophoretic stain (For Molecular Biology) |
Purity |
CAS No. |
6226-79-5 | |
Molecular Formula |
C22H12N4Na4O13S4 |
Molecular Weight |
760.56 |
H.S.Code |
3204.90000 |
Shelf Life |
60 Months |
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 |
Packaging
Specification
| Appearance | A dark red crystalline powder |
| Absorption maxima in water | 517 - 523 nm |
| Specific absorptivity 1%/1cm (at lmax) | Min 460 |
| Loss on dryig (at 110°C) | Max 10% |
| Suitability (for electrophoresis) | Passes test |
Safety Information and Hazard Symbols
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338