C.I. Direct green 21
- Product Name
- C.I. Direct green 21
- CAS No.
- 8003-52-9
- Chemical Name
- C.I. Direct green 21
- Synonyms
- Direct Green 21;C.I. Direct green 21;C.I.Direct Green 21:C.I.31790
- CBNumber
- CB12498107
- Molecular Formula
- C39H27N7O13S3.4Na
- Formula Weight
- 989.84
- MOL File
- Mol file
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C.I. Direct green 21 Property
- EPA Substance Registry System
- C.I. Direct Green 21 (8003-52-9)
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C.I. Direct green 21 Chemical Properties,Usage,Production
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, coupled with 2-Hydroxybenzoic acid?, and then and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, its product to diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-1,3-disulfonic acid coupling.
Properties and Applications
dark green. Soluble in water for SAP green, slightly soluble in soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid in the dark for the light blue, green for blu-ray diluted, accompanied by precipitation;?Dye solution was added 10% sodium hydroxide solution as a pale red brown.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| AATCC | 5 | 5 | 3-4 | 2 | 3 | ||
C.I. Direct green 21 Preparation Products And Raw materials
Raw materials
Preparation Products
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C.I. Direct green 21 Suppliers
8003-52-9, C.I. Direct green 21Related Search:
Direct Green 21:1
2,7-Naphthalenedisulfonic acid, 5-(benzoylamino)-3-[[2-ethoxy-6-sulfo-4-[(3-sulfo[1,1'-biphenyl]-4-yl)azo]-1-naphthalenyl]azo]-4-hydroxy-, tetrasodium salt
4,5-Dihydroxy-3-[[2-ethoxy-4-[(8-sodiosulfo-2-naphthalenyl)azo]-1-naphthalenyl]azo]naphthalene-1-sulfonic acid sodium salt
DIRECT GREEN 12
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4-Amino-5-hydroxy-3-[[4'-[(4-hydroxyphenyl)azo]-1,1'-biphenyl-4-yl]azo]-6-(1-naphtylazo)-2,7-naphthalenedisulfonic acid disodium salt
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Benzoic acid, 5-[[4'-[[8-amino-7-[(2,5-disulfophenyl)azo]-1-hydroxy-5-sulfo-2-naphthalenyl]azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, tetrasodium salt
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