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6226-79-5

6226-79-5 structure
6226-79-5 structure
  • Name: Ponceau S
  • Chemical Name: Ponceau S
  • CAS Number: 6226-79-5
  • Molecular Formula: C22H12N4Na4O13S4
  • Molecular Weight: 760.569
  • Catalog: Biochemical Biochemical reagent Biological dye
  • Create Date: 2018-02-24 08:00:00
  • Modify Date: 2024-01-02 17:05:33
  • Ponceau S is the most commonly used stain for Western blotting. Ponceau S is applied as an acidic aqueous solution, and it is compatible with antibody-antigen binding, and stains the proteins on the membrane red[1][2].
Name Ponceau S
Synonyms PONCEAU S EXTRA
Tetrasodium 3-hydroxy-4-[(E)-{2-sulfonato-4-[(E)-(4-sulfonatophenyl)diazenyl]phenyl}diazenyl]naphthalene-2,7-disulfonate
Tetrasodium 3-hydroxy-4-[(E)-{2-sulfonato-4-[(E)-(4-sulfonatophenyl)diazenyl]phenyl}diazenyl]-2,7-naphthalenedisulfonate
EINECS 228-319-2
3-Hydroxy-4-[2-sulfo-4-(4-sulfophenylazo)phenylazo]-2,7-naphthalenedisulfonic Acid Tetrasodium Salt
c.i.acidred112
2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-((2-sulfo-4-((4-sulfophenyl)azo)phenyl)azo)-, tetrasodium salt
Ponceau Red S
Acid Red 112
ATX PONCEAU S RED
2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[(E)-2-[2-sulfo-4-[(E)-2-(4-sulfophenyl)diazenyl]phenyl]diazenyl]-, sodium salt (1:4)
FAST PONCEAU 2B
MFCD00003892
Description Ponceau S is the most commonly used stain for Western blotting. Ponceau S is applied as an acidic aqueous solution, and it is compatible with antibody-antigen binding, and stains the proteins on the membrane red[1][2].
Related Catalog
References

[1]. Sander H, et, al. Ponceau S waste: Ponceau S staining for total protein normalization. Anal Biochem. 2019 Jun 15; 575: 44-53.

[2]. Litovchick. Staining the Blot for Total Protein with Ponceau S. Cold Spring Harb Protoc. 2020 Mar 2; 2020(3): 098459.
Density 1.01 g/mL at 20 °C
Molecular Formula C22H12N4Na4O13S4
Molecular Weight 760.569
Exact Mass 759.887451
PSA 331.99000
LogP 7.31580
Index of Refraction n20/D 1.338
Storage condition Store at RT.
Water Solubility 10 g/L

CHEMICAL IDENTIFICATION

RTECS NUMBER :
QJ6600000
CHEMICAL NAME :
2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-((2-sulfo-4-((4-sulfophenyl)azo)phenyl)az o)-, tetrasodium salt
CAS REGISTRY NUMBER :
6226-79-5
LAST UPDATED :
199701
DATA ITEMS CITED :
5
MOLECULAR FORMULA :
C22-H16-N4-O13-S4.4Na
MOLECULAR WEIGHT :
764.62
Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H315-H319-H335
Precautionary Statements P280-P305 + P351 + P338-P337 + P313
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xi:Irritant;
Risk Phrases R36/37/38
Safety Phrases S26-S36-S37/39
RIDADR NONH for all modes of transport
WGK Germany 3
RTECS QJ6600000
HS Code 32041200
HS Code 32041200

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title: CAS No. 6226-79-5 | Chemsrc address: https://m.chemsrc.com/en/baike/512471.html

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