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16257-65-1

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16257-65-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16257-65-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,2,5 and 7 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 16257-65:
(7*1)+(6*6)+(5*2)+(4*5)+(3*7)+(2*6)+(1*5)=111
111 % 10 = 1
So 16257-65-1 is a valid CAS Registry Number.

16257-65-1Downstream Products

16257-65-1Relevant articles and documents

A SHORT IMPROVED SYSTHESIS OF N-SUBSTITUTED 5-AZA-2-OXA-3-OXO-BICYCLOHEPTANES

Bowers-Nemia, Margaret M.,Joullie, Madeleine M.

, p. 817 - 828 (2007/10/02)

N-Substituted 5-aza-2-oxa-3-oxo-bicycloheptanes are conformationally rigid models that have been used in several 1H-NMR studies.They have previously been obtained by multistep processes.We have devised a one step synthesis for these compounds.The utility of this new route has been demonstrated for five differently N-substituted substrates.

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