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(3S,4R)-3-<(1R)-(tert-butyldimethylsiloxy)ethyl>-4-<<(2R)-N-p-nitrobenzyloxycarbonylpyrrolidin-2-yl>acetylthio>azetidin-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

105420-43-7

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105420-43-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 105420-43-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,4,2 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 105420-43:
(8*1)+(7*0)+(6*5)+(5*4)+(4*2)+(3*0)+(2*4)+(1*3)=77
77 % 10 = 7
So 105420-43-7 is a valid CAS Registry Number.

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