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1H,3H-Thieno[3,4-c]thiophene, 3,6-dibromo-4,6-dihydro-1,1,4,4-tetramethyl-, cis- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

113340-21-9

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113340-21-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 113340-21-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,3,4 and 0 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 113340-21:
(8*1)+(7*1)+(6*3)+(5*3)+(4*4)+(3*0)+(2*2)+(1*1)=69
69 % 10 = 9
So 113340-21-9 is a valid CAS Registry Number.

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