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2,9-Dicyclohexyl-5,12-bis-(3-methyl-hex-1-ynyl)-anthra[2,1,9-def;6,5,10-d'e'f']diisoquinoline-1,3,8,10-tetraone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

209111-79-5

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209111-79-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 209111-79-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,1,1 and 1 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 209111-79:
(8*2)+(7*0)+(6*9)+(5*1)+(4*1)+(3*1)+(2*7)+(1*9)=105
105 % 10 = 5
So 209111-79-5 is a valid CAS Registry Number.

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