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197356-43-7

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197356-43-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 197356-43-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,3,5 and 6 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 197356-43:
(8*1)+(7*9)+(6*7)+(5*3)+(4*5)+(3*6)+(2*4)+(1*3)=177
177 % 10 = 7
So 197356-43-7 is a valid CAS Registry Number.

197356-43-7Upstream product

197356-43-7Downstream Products

197356-43-7Relevant articles and documents

Methods of dyeing keratin fibers with compositions containing pyrazolo-azole couplers

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, (2008/06/13)

The present invention relates to a composition for dyeing keratinous fibers, especially human hair, which in a medium appropriate for dyeing comprises: as coupler at least one compound of formula: ?in which: R1is especially hydrogen, alkyl, aryl, a heterocycle, a halogen, etc.; R2is especially hydrogen, halogen, aryloxy, alkoxy, acyloxy, arylthio, alkylthio, heteroarylthio, heteroaryloxy, etc.; Za, Zband Zcare independently a nitrogen atom or a carbon which carries a radical R3or R4whose meanings are identical to those of R1; at least one of Za, Zband Zcis a nitrogen atom; and R3and R4may together form an unsubstituted or substituted aromatic ring; and at least one oxidation base.

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