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1052003-67-4

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1052003-67-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1052003-67-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,5,2,0,0 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1052003-67:
(9*1)+(8*0)+(7*5)+(6*2)+(5*0)+(4*0)+(3*3)+(2*6)+(1*7)=84
84 % 10 = 4
So 1052003-67-4 is a valid CAS Registry Number.

1052003-67-4Downstream Products

1052003-67-4Relevant articles and documents

Intramolecular nonbonded S...N interaction in rabeprazole

Hayashi, Kazuhiko,Ogawa, Shiho,Sano, Shigeki,Shiro, Motoo,Yamaguchi, Kentaro,Sei, Yoshihisa,Nagao, Yoshimitsu

, p. 802 - 806 (2008)

Intramolecular nonbonded S...N interactions in the crystal structures of the derivatives (7a-d) of sodium rabeprazole (1) and an intermolecular nonbonded S...N interaction between ethylmethylsulfoxide and pyridine in a solution were recognized. These results made us estimate that the intramolecular nonbonded S...N interaction existed in 1 and its derivatives in a solution, and formed the 4-membered quasi-ring in 2 (Fig. 1) followed by the increase of the reactivity of 2 to give the putative spiro sulfoxide 3, which is the key intermediate in the reaction cascade of 1 (Chart 1).

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