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1026732-19-3

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1026732-19-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1026732-19-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,6,7,3 and 2 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1026732-19:
(9*1)+(8*0)+(7*2)+(6*6)+(5*7)+(4*3)+(3*2)+(2*1)+(1*9)=123
123 % 10 = 3
So 1026732-19-3 is a valid CAS Registry Number.

1026732-19-3Downstream Products

1026732-19-3Relevant academic research and scientific papers

Solid-phase synthesis of N-aryl-N′-carboalkoxy guanidines by the mitsunobu reaction of Fmoc-guanidines

Robinson, Dale E.,Seth, Punit P.,Jefferson, Elizabeth A.

, p. 2743 - 2749 (2004)

A new method for the solid-phase synthesis of N-aryl-N′-carboalkoxy guanidines is described. Aromatic amines were reacted with Fmoc-isothiocyanate to provide Fmoc-thioureas, which were coupled with Rink amide resin to provide the corresponding resin-bound Fmoc-guanidines. Subsequent Mitsunobu alkylation with a variety of alcohols delivered N-aryl-N′ carboalkoxy guanidines in good to high purity after resin cleavage.

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