C.I. Direct Red 187
- Product Name
- C.I. Direct Red 187
- CAS No.
- 1325-64-0
- Chemical Name
- C.I. Direct Red 187
- Synonyms
- Direct Red 187;C.I. Direct Red 187;C.I.Direct Red 187:C.I.40275
- CBNumber
- CB54770812
- Formula Weight
- 0
- MOL File
- Mol file
More
Less
C.I. Direct Red 187 Chemical Properties,Usage,Production
Preparation
in reflux (or a little take pressure), under the condition of sodium hydroxide solution in (E)-2-(2-sulfo-4-nitrostyryl)-5-nitrobenzenesulfonic acid and 3-Sulfo-5-aminosalicylic acid diazo, and 2-Amino-4-methylanisole coupled to a heating products.
Properties and Applications
yellow light red. Moderate soluble in water for orange brown, not soluble in alcohol. The strong sulfuric acid for blue-black, diluted for ash brown. The dye solution to join strong hydrochloric acid have dark brown precipitation; Add thick sodium hydroxide solution has the purple precipitation.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 3 | 2 | 5-6 | 3 | 3 | ||
C.I. Direct Red 187 Preparation Products And Raw materials
Raw materials
Preparation Products
More
Less
C.I. Direct Red 187 Suppliers
1325-64-0, C.I. Direct Red 187Related Search:
Direct Red 180
1-Chloro-8-hydroxy-7-[4-(6-methylbenzothiazol-2-yl)phenylazo]naphthalene-3,6-bis(sulfonic acid sodium) salt
Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt
2-Naphthalenesulfonic acid, 3-[[2,5-dimethyl-4-[(4-sulfophenyl)azo]phenyl]azo]-4-hydroxy-7-[[[(5-hydroxy-7-sulfo-2-naphthalenyl)amino]carbonyl]amino]-, trisodium salt
BENZOPURPURIN 4B
C.I. Direct Red 191
Direct red 194 (C.I. 35785)
Direct Red 181
2-Hydroxy-5-[[5-hydroxy-6-[(2-sodiooxycarbonylphenyl)azo]-7-sodiosulfo-2-naphthalenyl]azo]benzoic acid sodium salt