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900520-50-5

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900520-50-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 900520-50-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,0,5,2 and 0 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 900520-50:
(8*9)+(7*0)+(6*0)+(5*5)+(4*2)+(3*0)+(2*5)+(1*0)=115
115 % 10 = 5
So 900520-50-5 is a valid CAS Registry Number.

900520-50-5Relevant academic research and scientific papers

2-Diazoacetoacetic acid, an efficient and convenient reagent for the synthesis of α-diazo-β-ketoesters

Meyer, Michael E.,Ferreira, Eric M.,Stoltz, Brian M.

, p. 1316 - 1318 (2006)

The formation of various α-diazo acetoacetic esters can be obtained in a single transformation with good to excellent yields using readily available 2-diazoacetoacetic acid. The Royal Society of Chemistry 2006.

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