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Direct Blue 71

Direct Blue 71 structure

CAS No:
4399-55-7
Formula:
C40H27N7O13S4.4Na
Chemical Name:
Direct Blue 71
Synonyms:
1,5-Naphthalenedisulfonic acid,3-[2-[4-[2-[4-[2-(6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl]-6-sulfo-1-naphthalenyl]diazenyl]-1-naphthalenyl]diazenyl]-,sodium salt (1:4);C.I. Direct Blue 71;Saturn Blue LBRR;C.I. Direct Blue 71,tetrasodium salt;1,5-Naphthalenedisulfonic acid,3-[[4-[[4-[(6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-6-sulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]-,tetrasodium salt;C.I. 34140;Amanil Fast Blue FFB;Belamine Fast Blue FFC;Benzanil Supra Blue BRR;Calcodur Blue SL;Chlorantine Fast Blue FFC;Chlorantine Fast Blue GLL;Chlorantine Fast Blue GLN;Dialuminous Blue BRR;Diaphtamine Blue FFL;Diazol Light Blue R;Dicorel Blue L 2R;Diphenyl Fast Blue GL;Diphenyl Fast Blue GLN;Direct Fast Blue L 2R;Direct Fast Blue FF;Direct Light Blue BRR;Direct Light Blue MFL;Direct Light Blue RS;Durazol Blue 2R;Eliamina Blue FFL;Enianil Light Blue FFL;N.S. Fast Blue FR;Fastusol Blue LBRRA;Fenaluz Blue FR;Fixanol Blue 2R;Helion Blue BRRL;Hispaluz Blue FF;Paranol Fast Blue FFL;Pontamine Fast Blue SFL;Pyrazol Fast Blue BS;Pyrazoline Blue GF;Sirius Supra Blue BRR;Solamine Fast Blue BRR;Solantine Blue FF;Solar Blue G;Solius Light Blue BRR;Sumilight Supra Blue BRR;Suprazo Blue BRR;Suprexcel Blue 2GL;Tertrodirect Fast Blue R;Tetramine Fast Blue B 2R Extra;Triantine Fast Blue BLRN;Triantine Light Blue FRL;Direct Fast Blue;Lightfast Blue;Direct Lightfast Blue;Sirius Light Blue BRR;147516-25-4;201749-68-0
Categories:
Dyes and Pigments > Dye

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Description

black powder

Direct Blue 71 Basic Attributes

Molecular Weight：

1029.87

Exact Mass：

1028.982788

EC Number：

224-531-4

UNII：

MA5K8N8952

DSSTox ID：

DTXSID5044944

HScode：

32041400

Characteristics

PSA：

382.73000

XLogP3：

13.35420

Appearance：

Black Powder

Storage Conditions：

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

safety instructions：

24/25

Stability/Shelf Life：

Stable under normal temperatures and pressures.

GHS Classification：

Not Classified

Drug Information

MeSH Entry Terms：

C.I.Direct Blue 71

Direct Blue 71 Use and Manufacturing

Methods of Manufacturing

With 2-naphthylamine-4, 8-disulfonic acid (amino C acid), 1-naphthylamine, 8-amino-2-naphthalenesulfonic acid (1, 7-Cleve's Acid, 1, 7-Cleve's Acid), J acid is used as the raw material, firstly diazotize 3-amino-1, 5-naphthalenedisulfonic acid to couple with 1-naphthylamine for the first time, and then diazotize the coupling product with 1, 7-cliffe acid Carry out the second coupling, then diazotize the coupling product, and couple the product with J acid for the third time. After salting out, filtering, drying and crushing, the finished product is obtained. . Diazotize 11.45kg of amino C acid (100%), 2.61kg of sodium nitrite (100%), and 12.5kg of sulfuric acid (d154 1.383) to obtain (I), and couple with 5.5kg of 1-naphthylamine for 5 hours to obtain (II). Then (II) is diazotized and coupled with 9.36kg 1, 7-cliffeic acid for 7 hours to obtain (III). Then diazotize (III), couple with 8.6kg J acid (100%) for 2h, heat up to 70℃, salt out with 80kg table salt (industrial product), filter and dry to obtain dye.

Uses

Mainly used for dyeing of cotton, linen, viscose and other fabrics, but also for silk, nylon, leather, pulp, etc.

Manufacturing Info：

1,5-Naphthalenedisulfonic acid, 3-[2-[4-[2-[4-[2-(6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl]-6-sulfo-1-naphthalenyl]diazenyl]-1-naphthalenyl]diazenyl]-, sodium salt (1:4): ACTIVE|1,5-Naphthalenedisulfonic acid, 3-[2-[4-[2-[4-[2-(6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl]-6-sulfo-1-naphthalenyl]diazenyl]-1-naphthalenyl]diazenyl]-, sodium salt (1:?): INACTIVE

Computed Properties

Molecular Weight:1029.9
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:20
Rotatable Bond Count:6
Exact Mass:1028.9827456
Monoisotopic Mass:1028.9827456
Topological Polar Surface Area:383
Heavy Atom Count:68
Complexity:2160
Covalently-Bonded Unit Count:5
Compound Is Canonicalized:Yes

Material

Sodium hydroxide

1-Naphthylamine

Urea

Sodium acetate trihydrate