6487-04-3

Name	Acid Brown 121
CAS	6487-04-3
Molecular Formula	C28H19N8NaO14S2
MDL Number	MFCD23160437
Molecular Weight	778.61
MOL File	6487-04-3.mol

Synonyms

C.I.33520 Brown SFR Acid Brown H Acid Brown 121 Corium Acid Dark Brown MG FDCRYNDCYLYSJW-CDEBPZJLSA-N C.I.Acid Brown 121:C.I.33520 ACID BROWN H 100%,ACID BROWN 121 Acid Brown 121 ISO 9001：2015 REACH 4-Hydroxy-5-[[3-[(2-hydroxy-5-nitrophenyl)azo]-2,4-dihydroxyphenyl]azo]-3-[(4-nitrophenyl)azo]naphthalene-2,7-disulfonic acid disodium salt isodium,(3Z)-5-[(2Z)-2-[(5E)-5-[(2-hydroxy-5-nitrophenyl)hydrazinylidene]-4,6-dioxocyclohex-2-en-1-ylidene]hydrazinyl]-3-[(4-nitrophenyl)hydrazinylidene]-4-oxonaphthalene-2,7-disulfonate disodium,(3Z)-5-[(2Z)-2-[(5E)-5-[(2-hydroxy-5-nitrophenyl)hydrazinylidene]-4,6-dioxocyclohex-2-en-1-ylidene]hydrazinyl]-3-[(4-nitrophenyl)hydrazinylidene]-4-oxonaphthalene-2,7-disulfonate

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Hazard Information

Uses

C.I. Acid brown 121 is an acidic brown dye that can be adsorbed and removed by bentone clay.

Preparation

4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?diazo, Coupled with resorcinol, 4-Nitrobenzenamine diazo, and the generation of single accidentally coupled nitrogen compounds, its product again with diazo of 2-Amino-4-nitrophenol coupling.

Properties and Applications

dark yellow light brown. Soluble in water for brown. The strong sulfuric acid for wine, dilute after brown precipitation. In water solution to join strong hydrochloric acid with brown precipitation; Join rare sodium hydroxide solution for red brown.

References

[1] Baskaralingam P, Pulikesi M, Elango D, et al. Adsorption of acid dye onto organobentonite[J]. Journal of hazardous materials, 2006, 128(2-3): 138-144.

Supplier

Wuhai Shuou Technology Co., Ltd.

Telephone 17792809151

Websitehttp://www.ycgongchuang.com

Wuhan Netcom Electronic Commerce Limited

Telephone 18064670521

Websitehttps://www.chemicalbook.com/ShowSupplierProductsList20173/0_EN.htm

Dideu Industries Group Limited

Telephone+86-29-89586680 +86-15129568250

Websitehttps://www.dideu.com

Hubei Longxin Chemical Industry Co., Ltd.

Telephone 15271551270

Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1594136/0_EN.htm

Biosynth Biological Technology (Suzhou) Co Ltd

Telephone 51288865780

Websitehttp://www.biosynth.com

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