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N'-(2,4-dibromo-5-hydroxybenzylidene)nicotinohydrazide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

331657-07-9

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331657-07-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 331657-07-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,6,5 and 7 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 331657-07:
(8*3)+(7*3)+(6*1)+(5*6)+(4*5)+(3*7)+(2*0)+(1*7)=129
129 % 10 = 9
So 331657-07-9 is a valid CAS Registry Number.

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