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N,N'-(1,2-phenylene)bis(naphthalene-1-sulfonamide) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

220166-33-6

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220166-33-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220166-33-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,1,6 and 6 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 220166-33:
(8*2)+(7*2)+(6*0)+(5*1)+(4*6)+(3*6)+(2*3)+(1*3)=86
86 % 10 = 6
So 220166-33-6 is a valid CAS Registry Number.

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