CAS 2870-32-8

Direct Yellow 12

Description:

Direct Yellow 12, with the CAS number 2870-32-8, is an azo dye commonly used in textile and paper industries for its vibrant yellow hue. This synthetic dye is characterized by its solubility in water, making it suitable for direct dyeing processes. It exhibits good lightfastness and washfastness, although its stability can vary depending on the substrate and conditions. The chemical structure of Direct Yellow 12 includes azo groups (-N=N-), which are responsible for its color properties. It is important to note that while Direct Yellow 12 is widely used, concerns regarding the environmental impact and potential toxicity of azo dyes have led to increased scrutiny and regulation in various regions. Safety data sheets typically indicate that it should be handled with care, as it may cause skin irritation or allergic reactions in some individuals. Overall, Direct Yellow 12 is a significant compound in the dye industry, valued for its color properties and application versatility.

Formula: C₃₀H₂₈N₄O₈S₂·2Na

InChI: InChI=1S/C30H28N4O8S2.2Na/c1-3-41-27-15-11-23(12-16-27)31-33-25-9-7-21(29(19-25)43(35,36)37)5-6-22-8-10-26(20-30(22)44(38,39)40)34-32-24-13-17-28(18-14-24)42-4-2;;/h5-20H,3-4H2,1-2H3,(H,35,36,37)(H,38,39,40);;

InChI key: InChIKey=VOICIIARQRFWIW-UHFFFAOYSA-N

SMILES: C(=CC1=C(S(=O)(=O)O)C=C(N=NC2=CC=C(OCC)C=C2)C=C1)C3=C(S(=O)(=O)O)C=C(N=NC4=CC=C(OCC)C=C4)C=C3.[Na]

Synonyms:

• Airedale Yellow CHD
• Amanil Chrysophenine G
• Atlantic Chrysophenine YA
• Aurophenine O
• Benzanil Yellow CH
• Benzenesulfonic acid, 2,2′-(1,2-ethenediyl)bis[5-[(4-ethoxyphenyl)azo]-, disodium salt
• Benzenesulfonic acid, 2,2′-(1,2-ethenediyl)bis[5-[2-(4-ethoxyphenyl)diazenyl]-, sodium salt (1:2)
• Benzo Yellow LG
• Calcomine Brilliant Yellow
• Chrome Leather Yellow CH
• Chrysophenine ESP
• Chrysophenine Extra
• Chrysophenine G
• Chrysophenine G Extra
• Chrysophenine GP
• Chrysophenine J
• Chrysophenine KG Conc
• Chrysophenine NS
• Chrysophenine Y
• Chrysophenine YA-CF
• Chrysophenine Yellow
• Chrysophrenin G
• Ci 24895
• Cotton Yellow CH
• DY12 dye
• Diazamine Yellow C
• Diphenyl Chrysoine 3G
• Diphenyl Chrysoine 3GP
• Direct Chrysophenine G
• Direct Frosted Yellow G
• Direct Frozen Yellow G
• Direct Yellow 12
• Direct Yellow C
• Direct Yellow CHD
• Direct Yellow CV
• Direct Yellow G
• Erie Yellow Y
• Fenamin Yellow CP
• Fixanol Yellow 3G
• Kayafect Yellow S
• Kayaku Chrysophenine
• Kayaku Chrysophenine GE
• Kayaku Chrysophenine GN
• Kayaku Chrysophenine GX
• La 1120
• Mitsui Chrysophenine G
• Mitsui Chrysophenine G 400
• Mitsui Chrysophenine KG
• NSC 47745
• Nylomine Acid Yellow C 4R
• Peeramine Chrysophenine YA
• Pontamine Yellow CH
• Shikiso Chrysophenine GX
• Tertrodirect Yellow CG
• Vondacel Yellow CG
• disodium 2,2'-(E)-ethene-1,2-diylbis{5-[(E)-(4-ethoxyphenyl)diazenyl]benzenesulfonate}
• disodium 2,2'-(Z)-ethene-1,2-diylbis{5-[(E)-(4-ethoxyphenyl)diazenyl]benzenesulfonate}
• C.I. 24895

Chrysophenine sodium salt

CAS: 2870-32-8

A diazo stilbene dye

Formula: C₃₀H₂₆N₄Na₂O₈S₂

Molecular weight: 680.66

Ref: 02-J64999

Direct Yellow 12

CAS: 2870-32-8

Formula: C₃₀H₂₆N₄Na₂O₈S₂

Color and Shape: Solid

Molecular weight: 680.6590

Ref: IN-DA003PQZ

Chrysophenine

CAS: 2870-32-8

Formula: C₃₀H₂₆N₄Na₂O₈S₂

Molecular weight: 680.66

Ref: 7W-GT8153

Chrysophenine

CAS: 2870-32-8

Chrysophenine

Purity: BS

Molecular weight: 680.66g/mol

Ref: 54-OR1030187

Chrysophenine

CAS: 2870-32-8

Chrysophenine is a yellow dye that is soluble in water. It can be used as a reactive dye for textile printing, paper, and leather. Chrysophenine has a high resistance to radiation and acidic environments. The optimum concentration of chrysophenine is 0.5%. This dye has been shown to have an adsorption capacity of 2-3 times its weight in water, which may be due to the hydrophobic nature of the molecule. The reaction mechanism for this dye is unknown but it is believed to be a free radical addition polymerization process.

Formula: C₃₀H₂₆N₄Na₂O₈S₂

Color and Shape: Powder

Molecular weight: 680.66 g/mol

Ref: 3D-FC52661

Chrysophenine

CAS: 2870-32-8

Formula: C₃₀H₂₆N₄Na₂O₈S₂

Color and Shape: Light yellow to Brown powder to crystal

Molecular weight: 680.66

Ref: 3B-C0530

Chrysophenine (Technical Grade)

Controlled Product

CAS: 2870-32-8

Stability Light Sensitive
Applications Chrysophenine is an an organic azo dye (a direct dye) used in the textile and cosmetic industries. Chrysophenine is a water pollutant, removed from the environment by membrane filtration. Dyes and metabolites.
References Burkinshaw, S. M.; et al.: Dyes and Pigments, 161, 628 (2019); Pan, C.; et al.: Sepu, 36, 904 (2018); Basiri, F.; et al.: Current Nanoscience, 7, 633 (2011).

Formula: C₃₀H₂₆N₄O₈S₂·2Na

Color and Shape: Neat

Molecular weight: 680.66

Ref: TR-C433123