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1023648-20-5

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1023648-20-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1023648-20-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,3,6,4 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1023648-20:
(9*1)+(8*0)+(7*2)+(6*3)+(5*6)+(4*4)+(3*8)+(2*2)+(1*0)=115
115 % 10 = 5
So 1023648-20-5 is a valid CAS Registry Number.

1023648-20-5Relevant articles and documents

An efficient total synthesis of a sphingosine-1-phosphate receptor agonist KRP-203

Chino, Masao,Kiuchi, Masatoshi,Adachi, Kunitomo

, p. 3859 - 3866 (2008/09/21)

An efficient total synthesis of the S1P1 agonist, KRP-203, is described. The key step involves the conjugate addition of diethyl acetamidomalonate to a styrene compound to give the core structure of KRP-203. Multigram quantities of the targeted KRP-203, sufficient for several biological studies, were obtained in six steps with an overall yield of 58%.

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