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1403963-34-7

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1403963-34-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1403963-34-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,3,9,6 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1403963-34:
(9*1)+(8*4)+(7*0)+(6*3)+(5*9)+(4*6)+(3*3)+(2*3)+(1*4)=147
147 % 10 = 7
So 1403963-34-7 is a valid CAS Registry Number.

1403963-34-7Relevant articles and documents

Elucidating the mechanism of reversible oxiranations via magnetization transfer spectroscopy

Chase, Daniel T.,Moerdyk, Jonathan P.,Bielawski, Christopher W.

, p. 5510 - 5513 (2012)

The reversible [2 + 1] cycloadditions between an N,N′-diamidocarbene (DAC) and eight aldehydes were examined using NMR spectroscopy. Variable temperature magnetization transfer experiments revealed higher exchange rates and lower activation barriers when electron-deficient aldehydes were employed. Likewise, competitive equilibrium studies indicated a thermodynamic preference for electron-deficient aryl and sterically unhindered alkyl aldehydes compared to more electron-rich or bulkier substrates. Collectively, these and other data collected were consistent with the oxiranation process proceeding in an asynchronous manner.

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