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(1R,4aR,9aR)-6,6,8,8-Tetraisopropyl-1-trityloxymethyl-4a,9a-dihydro-1H-2,5,7,9-tetraoxa-6,8-disila-benzocycloheptene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

113409-91-9

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113409-91-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 113409-91-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,4,0 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 113409-91:
(8*1)+(7*1)+(6*3)+(5*4)+(4*0)+(3*9)+(2*9)+(1*1)=99
99 % 10 = 9
So 113409-91-9 is a valid CAS Registry Number.

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