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N,N'-Bis--N,N'-bis-(dicloroacetil)-etilendiammina is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

20501-91-1

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20501-91-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20501-91-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,5,0 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 20501-91:
(7*2)+(6*0)+(5*5)+(4*0)+(3*1)+(2*9)+(1*1)=61
61 % 10 = 1
So 20501-91-1 is a valid CAS Registry Number.

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