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342649-52-9

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342649-52-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 342649-52-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,2,6,4 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 342649-52:
(8*3)+(7*4)+(6*2)+(5*6)+(4*4)+(3*9)+(2*5)+(1*2)=149
149 % 10 = 9
So 342649-52-9 is a valid CAS Registry Number.

342649-52-9Downstream Products

342649-52-9Relevant academic research and scientific papers

Model studies on total synthesis of the chartellines, spirocyclic β-lactam alkaloids from a marine bryozoan

Lin, Xichen,Weinreb, Steven M.

, p. 2631 - 2633 (2001)

A chartelline alkaloid model system containing a spirocyclic β-lactam moiety and α,β-unsaturated imine has been constructed from isatin using a Staudinger imine-ketene cycloaddition and an addition to an N-activated γ-lactam as key steps.

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