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103550-87-4

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103550-87-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 103550-87-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,5,5 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 103550-87:
(8*1)+(7*0)+(6*3)+(5*5)+(4*5)+(3*0)+(2*8)+(1*7)=94
94 % 10 = 4
So 103550-87-4 is a valid CAS Registry Number.

103550-87-4Relevant articles and documents

Ruthenium Metathesis: A Key Step to Access a New Cyclic Tetrasubstituted Olefin Platform

Heinrich, Clément F.,Durand, Didier,Starck, Jér?me,Michelet, Véronique

, p. 7064 - 7067 (2020)

An rapid and mild synthetic route for the preparation of cyclic tetrasubstituted platforms via ruthenium-catalyzed ring-closing metathesis (RCM) has been developed. This process tolerates a wide range of functionalities such as nitrogen, oxygen, sulfur, silicon, and carbon tethered groups, as well as very challenging fluorine and boron atoms (36 derivatives, up to 96%). This diversity-oriented method was further demonstrated by the postfunctionalization reactions, such as Pd-couplings, N-substitution, and reductive amination introducing a morpholine moiety.

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