Acid Brown 121
- CAS NO.：6487-04-3
- Empirical Formula: C28H19N8NaO14S2
- Molecular Weight: 778.61
- MDL number: MFCD23160437
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-04-17 18:22:24
What is Acid Brown 121?
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.
Safety information for Acid Brown 121
Acid Brown 121 manufacturer
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![trisodium 2,4-bis[[2,4-diamino-5-[(3-sulphonatophenyl)azo]phenyl]azo]benzenesulphonate](https://img.chemicalbook.in/CAS/GIF/6428-26-8.gif)
![disodium 4-[[2,4-diamino-5-[(3-sulphonatophenyl)azo]phenyl]azo]-2-[[2,6-dihydroxy-3-[(4-nitrophenyl)azo]phenyl]azo]benzenesulphonate](https://img.chemicalbook.in/CAS/GIF/6428-27-9.gif)
![4-Hydroxy-6-[[3-[(2-hydroxy-3-nitro-5-sodiosulfophenyl)azo]-2,4-dihydroxyphenyl]azo]-3-[(4-nitrophenyl)azo]naphthalene-2-sulfonic acid sodium salt](https://img.chemicalbook.in/CAS/GIF/6487-05-4.gif)
![disodium hydrogen bis[4-[[2,6-dihydroxy-3-[(2-hydroxy-3,5-dinitrophenyl)azo]phenyl]azo]-3- methylbenzenesulphonato(3-)]chromate(3-)](https://img.chemicalbook.in/CAS/20180808/GIF/6408-05-5.gif)
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