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Trifluoro-methanesulfonic acid (4aR,6S,7R,8aS)-2,2-di-tert-butyl-7-(tert-butyl-dimethyl-silanyloxy)-hexahydro-1,3,5-trioxa-2-sila-naphthalen-6-ylmethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

440635-05-2

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440635-05-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 440635-05-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,0,6,3 and 5 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 440635-05:
(8*4)+(7*4)+(6*0)+(5*6)+(4*3)+(3*5)+(2*0)+(1*5)=122
122 % 10 = 2
So 440635-05-2 is a valid CAS Registry Number.

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