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Trifluoro-methanesulfonic acid 4,4-dimethyl-2-oxo-cyclohex-(Z)-ylidenemethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1026581-92-9

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1026581-92-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1026581-92-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,6,5,8 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1026581-92:
(9*1)+(8*0)+(7*2)+(6*6)+(5*5)+(4*8)+(3*1)+(2*9)+(1*2)=139
139 % 10 = 9
So 1026581-92-9 is a valid CAS Registry Number.

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