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Ethanone, 1-(2-ethyl-2-cyclohexen-1-yl)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

20504-08-9

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20504-08-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20504-08-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,5,0 and 4 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20504-08:
(7*2)+(6*0)+(5*5)+(4*0)+(3*4)+(2*0)+(1*8)=59
59 % 10 = 9
So 20504-08-9 is a valid CAS Registry Number.

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