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N-(9-ethyl-9H-carbazol-3-yl)-4-methylbenzenesulfonamide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

256385-64-5

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256385-64-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 256385-64-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,3,8 and 5 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 256385-64:
(8*2)+(7*5)+(6*6)+(5*3)+(4*8)+(3*5)+(2*6)+(1*4)=165
165 % 10 = 5
So 256385-64-5 is a valid CAS Registry Number.

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