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100191-30-8

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100191-30-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 100191-30-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,1,9 and 1 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 100191-30:
(8*1)+(7*0)+(6*0)+(5*1)+(4*9)+(3*1)+(2*3)+(1*0)=58
58 % 10 = 8
So 100191-30-8 is a valid CAS Registry Number.

100191-30-8Relevant articles and documents

Water-soluble trisazo 8-amino-naphthol-1 dyes

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, (2008/06/13)

Very effective direct dyeing of cotton and other hydroxyl- or nitrogen-containing fibers is effected with water-soluble triasazo dyes having the formula: where A is a radical of a diazoconstituent and A3 is a radical of a coupling constituent STR1 and A1 or A2 or both can have their azo linkages reversed. These dyes are very fast particularly to washing and to perspiration, and are so effective with cotton that dye baths for such use are rapidly exhausted and the disposal of used bath is less of a problem.

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