[7-hydroxy-8-[(4-sulpho-1-naphthyl)azo]naphthalene-1,3-disulphonato(3-)]aluminium

Basic Information

View in Editor

CAS Number

15876-47-8

Molecular Formula

C20H10AlN2O10S3

Molecular Weight

561.47 g/mol

EINECS

240-008-3

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Ketones

Fine Chemicals Dyes and Pigments Organic Dyes

Fine Chemicals Surfactants Anionic Surfactants

Basic Physical Properties

Boiling Point

808.06℃[at 101 325 Pa]

Density

1.81[at 20℃]

Water Solubility

307.7μg/L at 25℃

Vapor Pressure

0Pa at 25℃

SMILES

View in Editor

[Al+3].O=C1C=CC2C(S([O-])(=O)=O)=CC(=CC=2/C/1=N/NC1=CC=C(S([O-])(=O)=O)C2=CC=CC=C12)S([O-])(=O)=O

InChI

InChI=1S/C20H14N2O10S3.Al/c23-17-7-5-14-15(9-11(33(24,25)26)10-19(14)35(30,31)32)20(17)22-21-16-6-8-18(34(27,28)29)13-4-2-1-3-12(13)16;/h1-10,21H,(H,24,25,26)(H,27,28,29)(H,30,31,32);/q;+3/p-3/b22-20-;

InChIKey

VCENCTVITRABOG-KGYDJYTLSA-K

LogP

2.31 at 25℃

Complexity

1190

Synonyms & References

English

[7-hydroxy-8-[(4-sulpho-1-naphthyl)azo]naphthalene-1,3-disulphonato(3-)]aluminium
Ponceau 4R Lake
Aluminum, 7-hydroxy-8-(4-sulfo-1-naphthalenyl)azo-1,3-naphthalenedisulfonato(3-)-
[7-Hydroxy-8-[(4-sulfo-1-naphthalenyl)azo]-1,3-naphthalenedisulfonic acid]aluminum salt
2-Hydroxy-[1,1'-azobisnaphthalene]-4',6,8-trisulfonic acid aluminum salt
Cochineal carmine
Einecs 240-008-3
Carmine 60% Food Grade
[7-Hydroxy-8-[(4-sulpho-1-naphthyl)azo]naphthalene-1,3-disulphonato(3-)]aluminium
aluminum,(5E)-6-oxo-5-[(4-sulfonatonaphthalen-1-yl)hydrazinylidene]naphthalene-1,3-disulfonate
aluminum (5E)-6-oxo-5-[2-(4-sulfonatonaphthalen-1-yl)hydrazinylidene]-5,6-dihydronaphthalene-1,3-disulfonate

MDL Number

MFCD19443505

EC Number

240-008-3

FAQ

What is [7-hydroxy-8-[(4-sulpho-1-naphthyl)azo]naphthalene-1,3-disulphonato(3-)]aluminium (CAS: 15876-47-8)?

[7-hydroxy-8-[(4-sulpho-1-naphthyl)azo]naphthalene-1,3-disulphonato(3-)]aluminium, also known as N-Sulphonated Alizarin Red S Aluminium Salt, is a complex organic compound. This compound has a unique structure that includes a naphthalene base with sulfur and azo groups, and aluminum as the metal ion. It is characterized by its bright red color and is soluble in water and organic solvents. This compound is often used in analytical chemistry for spectroscopic analysis and in the pharmaceutical industry for colorimetric assays.

What are the main uses of [7-hydroxy-8-[(4-sulpho-1-naphthyl)azo]naphthalene-1,3-disulphonato(3-)]aluminium (CAS: 15876-47-8)?

[7-hydroxy-8-[(4-sulpho-1-naphthyl)azo]naphthalene-1,3-disulphonato(3-)]aluminium is primarily used in the pharmaceutical industry as a reagent for colorimetric assays due to its distinctive red color. It is also utilized in analytical chemistry for spectroscopic analysis, as well as in the textile industry for dyeing and in the food industry as a coloring agent.

Is [7-hydroxy-8-[(4-sulpho-1-naphthyl)azo]naphthalene-1,3-disulphonato(3-)]aluminium (CAS: 15876-47-8) safe?

When handled properly, [7-hydroxy-8-[(4-sulpho-1-naphthyl)azo]naphthalene-1,3-disulphonato(3-)]aluminium is considered safe. However, it is important to follow safety guidelines. This compound should be used in well-ventilated areas, and appropriate personal protective equipment (PPE) should be worn. Direct contact with skin or eyes should be avoided, and spills should be cleaned up using appropriate methods to prevent contamination. Proper disposal should be ensured to avoid environmental hazards.

How should [7-hydroxy-8-[(4-sulpho-1-naphthyl)azo]naphthalene-1,3-disulphonato(3-)]aluminium (CAS: 15876-47-8) be stored?

[7-hydroxy-8-[(4-sulpho-1-naphthyl)azo]naphthalene-1,3-disulphonato(3-)]aluminium should be stored in a cool, dry place away from direct sunlight and heat sources. It is recommended to keep the compound in a tightly sealed container to prevent moisture absorption. The storage temperature should not exceed 25°C, and the relative humidity should be kept below 60%. Adequate ventilation should be provided to ensure safety. If the compound becomes wet, it should be dried before use to maintain its effectiveness.