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Direct Blue 78

Direct Blue 78 structure

CAS No:
2503-73-3
Formula:
C42H29N7O13S4.4Na
Chemical Name:
Direct Blue 78
Synonyms:
1,4-Benzenedisulfonic acid,2-[2-[4-[2-[4-[2-[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]diazenyl]-1-naphthalenyl]diazenyl]-6-sulfo-1-naphthalenyl]diazenyl]-,sodium salt (1:4);C.I. Direct Blue 78,tetrasodium salt;Sirius Supra Blue G;1,4-Benzenedisulfonic acid,2-[[4-[[4-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-6-sulfo-1-naphthalenyl]azo]-,tetrasodium salt;C.I. Direct Blue 78;C.I. 34200;Amanil Fast Blue 4GL;Belamine Fast Blue 4GL;Benzanil Supra Blue 4GL;Calcodur Blue 4GL;Calcoform Blue 4GL;Chlorantine Fast Blue 4GL;Chrome Leather Blue G;Chrome Leather Blue 4GL;Diaphtamine Light Blue 4GL;Diazol Light Blue 3J;Diazol Light Blue 4J;Dicorel Blue LV;Diphenyl Fast Blue 4GL;Direct Fast Blue 4GL;Direct Fast Blue LV;Direct Light Blue 4JS;Durazol Blue G;Eliamina Blue 4GL;Fastosol Blue;Fastusol Blue GA-CF;Fastusol Blue LG;Fenaluz Blue 4G;Helion Blue G;Kayarus Blue G;Paranol Fast Blue 4GL;Pontamine Fast Blue 4GL;Pyrazol Fast Blue 4GL;Pyrazoline Blue 4GL;Solamine Fast Blue G;Solantine Blue 4GL;Solar Blue 3G;Solex Blue GLL;Solius Light Blue G;Sumilight Supra Blue G;Tertrodirect Fast Blue SG;Tetramine Fast Blue G Extra;Triantine Fast Blue G;Triantine Light Blue G;Saturn Blue L 4G;Direct Fast Sky Blue K;Direct Lightfast Sky Blue K;Durazol Blue GS;Sumilight Supra Blue G Conc.;Durazol Blue BS;Orbantin Blue G;Saturn Blue L 4G300;Solophenyl Blue 4GL;47909-69-3
Categories:
Dyes and Pigments > Dye

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Direct Blue 78 Basic Attributes

Molecular Weight：

1055.90608

Exact Mass：

1055.00000

EC Number：

219-708-8

Characteristics

PSA：

368.74000

XLogP3：

13.85420

Direct Blue 78 Use and Manufacturing

Methods of Manufacturing

Using aniline-2, 5-bissulfonic acid, 1, 7-cliffeic acid, 1-naphtholamine and phenyl J acid (2-phenylamino-8-naphthol-6-sulfonic acid) as raw materials, after 3 times of diazonium Chemical and coupling products. After salting out, filtering, drying and crushing, the finished product is obtained.

Uses

It is mainly used for dyeing and printing cotton, viscose and its fabrics. The shade and dyeing performance are similar to the direct light blue RGL, and can be replaced with each other. It can also be used for printing and dyeing nylon and its fabrics, adding cosolvent, and fixing with ammonium tartrate. Dyeing adopts padding method. When cotton, viscose and other fibers are dyed in the same bath, the color of wool and nylon is lighter than that of cotton and viscose, and the silk is lighter. The polyester and acrylic are slightly stained, and the two and three fibers are not stained. Used in the same bath with disperse dyes for dyeing polyester/viscose blended fabrics.

Computed Properties

Molecular Weight:1055.9
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:20
Rotatable Bond Count:8
Exact Mass:1054.9983957
Monoisotopic Mass:1054.9983957
Topological Polar Surface Area:369
Heavy Atom Count:70
Complexity:2170
Covalently-Bonded Unit Count:5
Compound Is Canonicalized:Yes

Material

1-Naphthylamine