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Ponceau S

Ponceau S structure

CAS No:
6226-79-5
Formula:
C22H16N4O13S4.4Na
Chemical Name:
Ponceau S
Synonyms:
2,7-Naphthalenedisulfonic acid,3-hydroxy-4-[2-[2-sulfo-4-[2-(4-sulfophenyl)diazenyl]phenyl]diazenyl]-,sodium salt (1:4);C.I. Acid Red 112,tetrasodium salt;2,7-Naphthalenedisulfonic acid,3-hydroxy-4-[[2-sulfo-4-[(4-sulfophenyl)azo]phenyl]azo]-,tetrasodium salt;Ponceau S;C.I. Acid Red 112;Ponceau S Extra;Ponceau Red S
Categories:
Biochemical Engineering > Biochemical Reagents

Description

red powder

Ponceau S is an organic sodium salt that is the tetrasodium salt of 3-hydroxy-4-({2-sulfo-4-[(4-sulfophenyl)diazenyl]phenyl}diazenyl)naphthalene-2,7-disulfonic acid. It has a role as a histological dye and a fluorochrome. It is an organic sodium salt and an organosulfonate salt. It contains a Ponceau S(4-).

Ponceau S Basic Attributes

Molecular Weight：

760.57

Exact Mass：

759.887451

EC Number：

228-319-2

UNII：

T1C2UGS05F

HScode：

32041200

Characteristics

PSA：

331.99000

XLogP3：

7.31580

Appearance：

Red-brown Powder/Solid

Density：

1.01 g/mL at 20 °C

Refractive Index：

n20/D 1.338

Water Solubility：

H2O: 10 g/L

Storage Conditions：

Store at RT.

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

hazard class code：

36/37/38

safety instructions：

26-36-37/39

RTECS Number：

QJ6600000

Marks：

Stability/Shelf Life：

Stable. Incompatible with strong oxidizing agents.

Precautionary statement(s)：

P280-P305 + P351 + P338-P337 + P313

Hazard Statements：

H315-H319-H335

GHS Classification：

|Warning|H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 55 companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Drug Information

MeSH：

Chemicals and substances that impart color including soluble dyes and insoluble pigments. They are used in INKS; PAINTS; and as INDICATORS AND REAGENTS. (See all compounds classified as Coloring Agents.)

MeSH Entry Terms：

ponceau S

Ponceau S Use and Manufacturing

Uses

Ponceau S is used to stain proteins on nitrocellulose or PVDF membranes (Western blots). The following is a common staining solution preparation: 0.1% Ponceau S (w/v) in 5% acetic acid 2% Lichun Red S (w/v) in 30% TCA, 30% sulfosalicylic acid

Manufacturing Info：

2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[2-[2-sulfo-4-[2-(4-sulfophenyl)diazenyl]phenyl]diazenyl]-, sodium salt (1:4): ACTIVE

Computed Properties

Molecular Weight:760.6
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:17
Rotatable Bond Count:4
Exact Mass:759.8874483
Monoisotopic Mass:759.8874483
Topological Polar Surface Area:332
Heavy Atom Count:47
Complexity:1430
Covalently-Bonded Unit Count:5
Compound Is Canonicalized:Yes

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Guide of Ponceau S

Description
Basic Attributes
Characteristics
Safety Information
Drug Information
Use and Manufacturing
Computed Properties
Recommended Suppliers
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Ponceau S

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