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naphthalen-1-yl ethenesulfonate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

51972-90-8

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51972-90-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51972-90-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,9,7 and 2 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 51972-90:
(7*5)+(6*1)+(5*9)+(4*7)+(3*2)+(2*9)+(1*0)=138
138 % 10 = 8
So 51972-90-8 is a valid CAS Registry Number.

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