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126972-57-4

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126972-57-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 126972-57-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,9,7 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 126972-57:
(8*1)+(7*2)+(6*6)+(5*9)+(4*7)+(3*2)+(2*5)+(1*7)=154
154 % 10 = 4
So 126972-57-4 is a valid CAS Registry Number.

126972-57-4Downstream Products

126972-57-4Relevant articles and documents

TANDEM NUCLEOPHILIC SUBSTITUTION - 1,3 DIPOLAR CYCLOADDITION REACTIONS OF OXIMES WITH EPOXIDES AND DIPOLAROPHILES.

Grigg, Ronald,Markandu, Jasothara

, p. 5489 - 5492 (2007/10/02)

Regiospecific nucleophilic substitution reactions involving attack of the nitrogen atom of oximes on epoxides are used to generate nitrones which are then trapped in 1,3-dipolar cycloaddition reactions.These tandem processes are shown to be flexible and to have wide synthetic scope for the construction of complex molecular frameworks.

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