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W2{OC(C6H5)3}2{N(CH3)2}4 is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

139554-75-9

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139554-75-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139554-75-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,5,5 and 4 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 139554-75:
(8*1)+(7*3)+(6*9)+(5*5)+(4*5)+(3*4)+(2*7)+(1*5)=159
159 % 10 = 9
So 139554-75-9 is a valid CAS Registry Number.

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