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503270-27-7

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503270-27-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 503270-27-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,2,7 and 0 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 503270-27:
(8*5)+(7*0)+(6*3)+(5*2)+(4*7)+(3*0)+(2*2)+(1*7)=107
107 % 10 = 7
So 503270-27-7 is a valid CAS Registry Number.

503270-27-7Relevant academic research and scientific papers

Influence of the protecting groups on the syn/anti stereoselectivity of boron aldol additions with erythrulose derivatives. A theoretical and experimental study

Murga, Juan,Falomir, Eva,González, Florenci,Carda, Miguel,Marco

, p. 9697 - 9707 (2007/10/03)

We have investigated a series of aldol additions of protected L-erythrulose derivatives mediated by dicyclohexyl boron chloride. The syn/anti stereoselectivity has been found to depend on the type of protecting groups on the hydroxyl functions at C-3 and

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