| Identification | Back Directory | [Name]
Acid Brown 121 | [CAS]
6487-04-3 | [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 | [Molecular Formula]
C28H19N8NaO14S2 | [MOL File]
6487-04-3.mol | [Molecular Weight]
778.61 |
| Hazard Information | Back Directory | [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. |
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