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(1R,2R)-(2-hydroxy-1-isobutylbut-3-enyl)-carbamic acid 9H-fluoren-9-ylmethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

318957-40-3

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318957-40-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 318957-40-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,8,9,5 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 318957-40:
(8*3)+(7*1)+(6*8)+(5*9)+(4*5)+(3*7)+(2*4)+(1*0)=173
173 % 10 = 3
So 318957-40-3 is a valid CAS Registry Number.

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