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6426-65-9

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6426-65-9 Usage

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, first with 4-Hydroxynaphthalene-2,7-disulfonic acid coupling, again in alkaline conditions and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling.

Properties and Applications

Dark blue purple. Soluble in water for purplish red, slightly soluble in ethanol for pink. The strong sulfuric acid in blue, diluted for dark purple. The dye solution to join strong hydrochloric acid for Red sauce, precipitation; Add thick sodium hydroxide solution for red light brown. Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water Fading Stain Fading Stain ISO 4 4-5 2 2 2

Standard

Acid Resistance

Fading

Stain

ISO

4

Check Digit Verification of cas no

The CAS Registry Mumber 6426-65-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,2 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 6426-65:
(6*6)+(5*4)+(4*2)+(3*6)+(2*6)+(1*5)=99
99 % 10 = 9
So 6426-65-9 is a valid CAS Registry Number.

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6426-65-9Downstream Products

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