Phloxine B | CAS No. 18472-87-2

Phloxine B

Basic Information

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CAS Number

18472-87-2

Molecular Formula

C20H2Br4Cl4Na2O5

Molecular Weight

829.63 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Heterocyclic Compounds

Pharmaceutical Chemicals Pharmaceutical Intermediates Heterocyclic Intermediates

Fine Chemicals Dyes and Pigments Organic Dyes

Fine Chemicals Surfactants Anionic Surfactants

Agricultural Chemicals Pesticides Herbicides

Laboratory Chemicals Research Chemicals Biochemical Reagents

Basic Physical Properties

Melting Point

>250°C

Density

1.0600

Solubility

100g/l

SMILES

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Clc1c(Cl)c(Cl)c(c(c1Cl)C(=O)[O-])c1c2cc(Br)c(=O)c(c2oc2c1cc(Br)c(c2Br)[O-])Br.[Na+].[Na+]

InChI

InChI=1S/C20H4Br4Cl4O5.2Na/c21-5-1-3-17(9(23)15(5)29)32-18-4(2-6(22)16(30)10(18)24)20(3)8-7(19(31)33-20)11(25)13(27)14(28)12(8)26;;/h1-2,29-30H;;/q;2*+1/p-2

InChIKey

OOYIOIOOWUGAHD-UHFFFAOYSA-L

LogP

10.20580

Complexity

780

Safety Information

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GHS Hazard Pictograms

H402

Hazard Statement

H402 Harmful to aquatic life
Hazardous to the aquatic environment, acute hazard

Stability

Stable. Incompatible with strong oxidizing agents.

Synonyms & References

English

Acid Red 92
C.I. 45410
Phloxine B
Eosin 10B
3,4,5,6-Tetrachloro-2-(1,4,5,8-tetrabromo-6-hydroxy-3-oxoxanthen-9-yl)benzoic acid disodium salt
2',4',5',7'-Tetrabromo-4,5,6,7-tetrachlorofluorescein disodium salt
Food Red No. 104
PHLOXINE B, C.I. 45410
AKA231
cred
D and C red dye No 28
D and C Red No. 28
EOSINE B
PHLOXINE
Phloxine 92
Phloxine B disodium salt
Phloxine B,high purity,Biological stain
RED 28
Red No. 28 Eosin 10B
red104
SUREDYE
2′,4′,5′,7′-Tetrabromo-4,5,6,7-tetrachlorofluorescein disodium salt
Cyanosine
2',4',5',7'-Tetrabromo-3,4,5,6-tetrachlorofluorescein Sodium Salt
d&cred
11969red
CI 45405
CI 45410
D&C
Red No. 28
D&C;Red No. 28

MDL Number

MFCD00070627

Customs Code

32041200

FAQ

What are the physical and chemical properties of Phloxine B (CAS: 18472-87-2)?

Phloxine B is a red azo dye with a molecular weight of approximately 300 g/mol. It is slightly soluble in water and has good light stability. Chemically, it is stable under normal conditions but can react with strong reducing agents. Phloxine B is often used in acidic solutions and has a pKa of about 6.5.

How is Phloxine B (CAS: 18472-87-2) typically synthesized?

Phloxine B is synthesized through the coupling of an aromatic diazonium salt with an azoic aniline. The reaction typically requires a coupling catalyst such as sodium hydroxide and occurs in an aqueous or organic medium. The yield is generally high, around 80-90%, and the process is selective, making it a popular method for dye synthesis.

What industries use Phloxine B (CAS: 18472-87-2)?

Phloxine B is widely used in the textile and dyeing industry for coloring fabrics. It is also employed in pharmaceuticals for coloring medications, in food and cosmetics for coloring purposes, and in the paper industry to enhance the appearance of paper. Additionally, it has applications in the analytical chemistry field for dye-sensitized solar cells and other sensing devices.

What precautions should be taken when handling Phloxine B (CAS: 18472-87-2)?

When handling Phloxine B, proper personal protective equipment (PPE) should be worn, including gloves, goggles, and a lab coat. The substance should be used in a well-ventilated area or a fume hood to minimize inhalation risks. Spills should be cleaned up with caution, using appropriate absorbent materials, and the area should be well-ventilated. Always consult the Safety Data Sheet (SDS) for detailed handling and disposal information.