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20549-54-6

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20549-54-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20549-54-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,5,4 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 20549-54:
(7*2)+(6*0)+(5*5)+(4*4)+(3*9)+(2*5)+(1*4)=96
96 % 10 = 6
So 20549-54-6 is a valid CAS Registry Number.

20549-54-6Downstream Products

20549-54-6Relevant articles and documents

Sulfonium ion-promoted traceless Schmidt reaction of alkyl azides

Ardiansah, Bayu,Kakiuchi, Kiyomi,Morimoto, Tsumoru,Tanimoto, Hiroki,Tomohiro, Takenori

supporting information, p. 8738 - 8741 (2021/09/08)

Schmidt reaction by sulfonium ions is described. General primary, secondary, and tertiary alkyl azides were converted to the corresponding carbonyl or imine compounds without any trace of the activators. This bond scission reaction through 1,2-migration of C-H and C-C bonds was accessible to the one-pot substitution reaction.

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