Direct Blue 71

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Direct Blue 71

CAS NO.： 4399-55-7

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Specification： 99%

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Lead Time： 14-30 days

Max Capacity： -

Packing： 25KG/Woven Bag

Product Detail

Properties

Direct Fast Blue B2RL

The index number:	Direct blue 71
CAS NO.:	4399-55-7
Information:	Direct Fast Blue B2RL
Swatch:

Properties

It is mainly used for dyeing cellulose fibers such as cotton, hemp and viscose. It is also used for dyeing silk, nylon and viscose / nylon blended fabrics. It can also be used for dyeing leather, paper, soap, casein, formaldehyde plastic and so on. In addition to dyeing, it can also be used for direct printing of cotton and viscose fabrics. When printing deep and thick patterns, urea and sodium hydrogen phosphate should be added to prepare the color paste.

CAS No.

4399-55-7

Formula

C40H23N7Na4O13S4

Molecular Mass

1029.87000

Exact Mass

1028.98000

PSA

382.73000

Logp

13.35420

IUPAC

tetrasodium;3-[[4-[[4-[(6-amino-1-hydroxy-3-sulfonatonaphthalen-2-yl)diazenyl]-6-sulfonatonaphthalen-1-yl]diazenyl]naphthalen-1-yl]diazenyl]naphthalene-1,5-disulfonate

Category

Appearance

Black Powder

Acidity and Basicity

alkalinity

HS Code

32041400

Export Formalities

A,B R,S

UN No.

0.0

DG-Class