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1,3-Bis-(trimethylsilyl)-2,2,4,4-tetraphenyl-cyclodisilazan is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21116-68-7

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21116-68-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21116-68-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,1 and 6 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21116-68:
(7*2)+(6*1)+(5*1)+(4*1)+(3*6)+(2*6)+(1*8)=67
67 % 10 = 7
So 21116-68-7 is a valid CAS Registry Number.

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