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2,2-dimethyl-8-oxo-(6rH)-4-thia-1-aza-bicyclo[4.2.0]octane-3t,7t-dicarboxylic acid 3-benzyl ester 7-tert-butyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

40052-18-4

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40052-18-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40052-18-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,0,5 and 2 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 40052-18:
(7*4)+(6*0)+(5*0)+(4*5)+(3*2)+(2*1)+(1*8)=64
64 % 10 = 4
So 40052-18-4 is a valid CAS Registry Number.

40052-18-4Relevant academic research and scientific papers

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