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3-[1-tert-butoxycarbonyl-4-(tert-butyl-dimethyl-silanyloxy)-pyrrolidin-2-yl]-pentanedioic acid diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

442681-36-9

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442681-36-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 442681-36-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,2,6,8 and 1 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 442681-36:
(8*4)+(7*4)+(6*2)+(5*6)+(4*8)+(3*1)+(2*3)+(1*6)=149
149 % 10 = 9
So 442681-36-9 is a valid CAS Registry Number.

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