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3--4-methyl-9H-carbazole-3-carboxamide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

220331-76-0

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220331-76-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220331-76-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,3,3 and 1 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 220331-76:
(8*2)+(7*2)+(6*0)+(5*3)+(4*3)+(3*1)+(2*7)+(1*6)=80
80 % 10 = 0
So 220331-76-0 is a valid CAS Registry Number.

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