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| OEM | OEM Services Provided |
| Feature | Good stability,Easy to Use |
| Classification | Dyes and Pigments |
| Advantage | Professional, Fast Delivery, Customizable | Samples | Apply for free，Contact us now. |
| Product Name: | Acid Brown 121 |
| Synonyms: | Brown SFR;Acid Brown H;4-Hydroxy-5-[[3-[(2-hydroxy-5-nitrophenyl)azo]-2,4-dihydroxyphenyl]azo]-3-[(4-nitrophenyl)azo]naphthalene-2,7-disulfonic acid disodium salt;C.I.33520;Corium Acid Dark Brown MG;FDCRYNDCYLYSJW-CDEBPZJLSA-N;Acid Brown 121;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 |
| CAS: | 6487-04-3 |
| MF: | C28H19N8NaO14S2 |
| MW: | 778.61 |
| EINECS: | |
| Product Categories: | |
| Mol File: | 6487-04-3.mol |
| Uses | C.I. Acid brown 121 is an acidic brown dye that can be adsorbed and removed by bentone clay. |
| 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. |
| [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. |
| Raw materials | Resorcinol-->8-Amino-1-naphthol-3,6-disulfonic acid monosodium salt monohydrate-->2-Amino-4-nitrophenol-->4-Nitroaniline |
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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