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Diazene, bis[4-(phenylsulfonyl)phenyl]- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

71819-33-5

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71819-33-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71819-33-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,8,1 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 71819-33:
(7*7)+(6*1)+(5*8)+(4*1)+(3*9)+(2*3)+(1*3)=135
135 % 10 = 5
So 71819-33-5 is a valid CAS Registry Number.

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