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61931-02-0

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61931-02-0 Usage

Preparation

4-Amino-3-hydroxy-7-nitronaphthalene-1-sulfonic acid diazo, and Naphthalen-2-ol coupling, and then translate into 1:2 chromium complex.

Properties and Applications

ash to red and black. Dark brown powder, soluble in water. Used for wool, polyamide fiber, silk and their blended fabric dyeing and printing. Nylon fabric in good dye deep performance. Also can be used for leather color. Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater Fading Stain Fading Stain Fading Stain ISO 5 3-4 4-5 4-5 4-5

Standard

Light Fastness

Fading

Stain

ISO

5

Check Digit Verification of cas no

The CAS Registry Mumber 61931-02-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,9,3 and 1 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 61931-02:
(7*6)+(6*1)+(5*9)+(4*3)+(3*1)+(2*0)+(1*2)=110
110 % 10 = 0
So 61931-02-0 is a valid CAS Registry Number.

61931-02-0Upstream product

61931-02-0Downstream Products

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