C.I. Acid Red 81
- Product Name
- C.I. Acid Red 81
- CAS No.
- 6846-33-9
- Chemical Name
- C.I. Acid Red 81
- Synonyms
- C.I.68200;Acid Red 81;C.I. Acid Red 81;C.I.Acid Red 81:C.I.68200;4-[(2,7-Dihydro-3-methyl-2,7-dioxo-3H-dibenz[f,ij]isoquinolin-6-yl)amino]benzenesulfonic acid sodium salt
- CBNumber
- CB42078777
- Molecular Formula
- C23H15N2NaO5S
- Formula Weight
- 454.43037
- MOL File
- 6846-33-9.mol
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C.I. Acid Red 81 Chemical Properties,Usage,Production
Preparation
1-Bromo-4-(N-methylacetamido)anthraquinone?condensation into 6-Bromo-3-methyl-3H-naphtho[1,2,3-de]quinoline-2,7-dione, then with aniline condensation, again with hair smoke sulphonated sulfuric acid, and translated into sodium salt.
Properties and Applications
colourful red blue light. Soluble in alcohol. The strong sulfuric acid for blue-ray red, diluted into pink.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 5-6 | 3 | 3-4 | 3 | 2-3 | 3-4 | ||
C.I. Acid Red 81 Preparation Products And Raw materials
Raw materials
Preparation Products
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C.I. Acid Red 81 Suppliers
6846-33-9, C.I. Acid Red 81Related Search:
EOSIN
disodium 4,4'-bis[(2-hydroxy-1-naphthyl)azo]-5,5'-dimethoxy[1,1'-biphenyl]-2,2'-disulphonate
ACID RED 9
EOSIN B
disodium 4-[(2,7-dihydro-3-methyl-2,7-dioxo-3H-dibenz[f,ij]isoquinolin-6-yl)amino]-benzene-1,3-disulphonate
ACID RED 89
ACID RED 88
2-Chloro-4-[(2,7-dihydro-3-methyl-2,7-dioxo-3H-dibenz[f,ij]isoquinolin-6-yl)amino]benzenesulfonic acid sodium salt
disodium 7-hydroxy-8-[[4'-[[4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]naphthalene-1,3-disulphonate