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6507-83-1

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6507-83-1 Usage

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, respectively with the 4-Hydroxynaphthalene-1-sulfonic acid and 4-Hydroxynaphthalene-2,7-disulfonic acid coupling.

Properties and Applications

purple. Soluble in water for deep purple, slightly soluble in alcohol for red light purple, insoluble in acetone. The strong sulfuric acid for blue, purple for red after diluted. The dye solution to join strong hydrochloric acid for purplish red color; Add thick sodium hydroxide solution in red. Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water Fading Stain Fading Stain ISO 4 3-4 1 2 2

Standard

Acid Resistance

Fading

Stain

ISO

4

Check Digit Verification of cas no

The CAS Registry Mumber 6507-83-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,0 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 6507-83:
(6*6)+(5*5)+(4*0)+(3*7)+(2*8)+(1*3)=101
101 % 10 = 1
So 6507-83-1 is a valid CAS Registry Number.

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