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1221289-17-3

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1221289-17-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1221289-17-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,1,2,8 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1221289-17:
(9*1)+(8*2)+(7*2)+(6*1)+(5*2)+(4*8)+(3*9)+(2*1)+(1*7)=123
123 % 10 = 3
So 1221289-17-3 is a valid CAS Registry Number.

1221289-17-3Relevant articles and documents

An Approach to 3-Oxa-7-azabicyclo[33.0]octanes - Bicyclic Morpholine Surrogates

Sokolenko, Yevhenii M.,Ostapchuk, Eugeniy N.,Artemenko, Artem,Grygorenko, Oleksandr O.

, p. 3112 - 3117 (2017/07/12)

An approach to 3-oxa-7-azabicyclo[3.3.0]octanes, bicyclic morpholine analogues, is reported, which relies on [3+2] cycloaddition of maleic anhydrides or furan-2(5 H)-ones and an in situ generated azomethine ylide. The utility of the method was demonstrated on a multigram scale.

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