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171968-66-4

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171968-66-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 171968-66-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,9,6 and 8 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 171968-66:
(8*1)+(7*7)+(6*1)+(5*9)+(4*6)+(3*8)+(2*6)+(1*6)=174
174 % 10 = 4
So 171968-66-4 is a valid CAS Registry Number.

171968-66-4Downstream Products

171968-66-4Relevant articles and documents

2-nitro-paraphenylenediamines substituted by sulphur in the 5-position, the process for their preparation, dyeing compositions in which they are present and their use in the dyeing of keratin fibres

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, (2008/06/13)

Novel nitrobenzene compounds of the nitroparaphenylenediamine type substituted by sulphur in the 5-position are disclosed. These compounds are intended especially for the dyeing of keratin fibres and in particular human hair. A process for their preparation, dyeing compositions in which these compounds are present and a dyeing process in which these compositions are used are also disclosed.

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