C.I. Acid Red 81
- CAS NO.:6846-33-9
- Empirical Formula: C23H15N2NaO5S
- Molecular Weight: 454.43037
What is C.I. Acid Red 81?
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 |
Safety information for C.I. Acid Red 81
Abamectin manufacturer
New Products
ALUMINIUM IODIDE 100 GM BUFFER CAPSULE PH 7.0 - 10 CAP BUFFER SOLUTION PH 9.5 (BORATE) EZEE BLUE GEL STAINER BORAX CARMINE (GRENACHERS ALCOHOLIC) POTASSIUM IODATE - IODIDE SOLN 0.1 N Dabigatran Acyl-O3-D-Glucuronide Trifluoroacetic Acid Salt Isofolic Acid Dabigatran 2-O-acylglucuronide metabolite Dabigatran Acyl-?-D- glucuronide Trifluroacetic Acid Erythromycin EP Impurity A Desloratidine Related Compound ARelated products of tetrahydrofuran
disodium 7-hydroxy-8-[[4'-[[4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]naphthalene-1,3-disulphonate
2-Chloro-4-[(2,7-dihydro-3-methyl-2,7-dioxo-3H-dibenz[f,ij]isoquinolin-6-yl)amino]benzenesulfonic acid sodium salt
ACID RED 88
ACID RED 89
disodium 4-[(2,7-dihydro-3-methyl-2,7-dioxo-3H-dibenz[f,ij]isoquinolin-6-yl)amino]-benzene-1,3-disulphonate
EOSIN B
ACID RED 9
disodium 4,4'-bis[(2-hydroxy-1-naphthyl)azo]-5,5'-dimethoxy[1,1'-biphenyl]-2,2'-disulphonate
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