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1,1,2,2-Tetrafluoro-1-iodo-2-[1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoro-2-{1,1,2,2-tetrafluoro-2-[1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoro-2-iodo-ethoxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

137521-63-2

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137521-63-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137521-63-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,5,2 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 137521-63:
(8*1)+(7*3)+(6*7)+(5*5)+(4*2)+(3*1)+(2*6)+(1*3)=122
122 % 10 = 2
So 137521-63-2 is a valid CAS Registry Number.

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