Sodium 3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate, CAS No. 130-22-3

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130-22-3

Catalog No. EBD17214

CAS 130-22-3

Name Sodium 3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate

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Basic Information

Synonyms: MordantRed3 C.I.58005 C.I.MordantRed3 Sodiumalizarinesulfonate DIAMONDREDW CI58005 CINO58005 LABOTEST-BBLT00159822 3,4-DIHYDROXY-2-ANTHRAQUINONESULFONICACID,SODIUMSALT 3,4-DIHYDROXY-9,10-DIOXO-2-ANTHRACENESULFONICACID,SODIUMSALT 9,10-DIHYDRO-3,4-DIHYDROXY-9,10-DIOXO-2-ANTHRACENESULFONICACID,SODIUMSALT ALIZARINSULFONICACIDSODIUMSALT AcidChromeRedS-80 AcidMordantRedS-80 sodium3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate AlizarinRedS Alizarinred 3,4-DIHYD

Molecular Formula: C14H7NaO7S

Molecular Weight: 342.26

MDL Number: MFCD00013049

Categories: Functional Chemicals > Consumer & Industrial Chemicals > Dyes and Dyeing Auxiliaries Materials Chemistry > Optoelectronic and Organic Semiconductor Materials > Dye Precursors

Product Description:

Mordant Red 3, also known as Alizarin Red S, is a water-soluble anthraquinone derivative. It is a synthetic organic compound characterized by its sulfonated structure, which imparts good solubility in aqueous solutions. The compound typically appears as an orange-red to brown powder. Its primary and most significant application is as a biological stain and histochemical dye in laboratory settings. It is widely used for the specific staining of calcium deposits in tissues (von Kossa staining) and for the detection of calcium in various biological samples. Beyond life sciences, it serves as a mordant dye for textiles, particularly for dyeing wool and silk with aluminum, chromium, or iron mordants to produce red shades. It also finds use as a pH indicator, changing from yellow (pH 3.7) to violet (pH 5.2). As a functional anthraquinone derivative, it is also of interest as a precursor or model compound in the research and development of organic dyes for advanced materials, including potential applications in dye-sensitized solar cells (DSSCs) and other photoelectronic systems due to its light-absorbing properties.

Physical Properties

Analytical Data

Appearance: yellow-orange powder