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135855-54-8

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135855-54-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135855-54-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,8,5 and 5 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 135855-54:
(8*1)+(7*3)+(6*5)+(5*8)+(4*5)+(3*5)+(2*5)+(1*4)=148
148 % 10 = 8
So 135855-54-8 is a valid CAS Registry Number.

135855-54-8Relevant articles and documents

Methods for dyeing keratinous fibres with aminoindoles, compositions and devices for use

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, (2008/06/13)

Method for dyeing keratinous fibres, in particular human keratinous fibres, such as hair, characterized in that a composition (A) containing, in a medium appropriate for dyeing, at least one aminoindole corresponding to the formula: STR1 in which: R1 and R3, independently of one another, represent a hydrogen atom or a C1 -C4 alkyl group; R2 denotes hydrogen or a C1 -C4 alkyl group or COOR', R' being a hydrogen atom or a C1 -C4 alkyl group; R4 represents a hydrogen atom or a C1 -C4 alkyl, C1 -C4 hydroxyalkyl or C2 -C4 polyhydroxyalkyl group; Z1 represents a hydrogen or halogen atom or a C1 -C4 alkyl group or OR; R being a hydrogen atom or a C1 -C4 alkyl group; and Z2 represents a hydrogen atom or a C1 -C4 alkyl group; and its salts is applied to said fibres, the colour being developed with the aid of an oxidizing system.

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