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73733-09-2

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73733-09-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73733-09-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,7,3 and 3 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 73733-09:
(7*7)+(6*3)+(5*7)+(4*3)+(3*3)+(2*0)+(1*9)=132
132 % 10 = 2
So 73733-09-2 is a valid CAS Registry Number.

73733-09-2Relevant articles and documents

EFFECT OF THE STRUCTURE OF BICYCLIC CARBENES ON THE DIRECTION OF THEIR STABILIZATION

Levashova, T. V.,Semeikin, O. V.,Balenkova, E. S.

, p. 53 - 56 (2007/10/02)

By pyrolysis of the sodium salts of bicyclooctan-2-one and bicyclononan-2-one tosylhydrazones the corresponding carbenes were generated.The first of them undergoes fragmentation with the formation of 1-octen-7-yne and rearrangement to bicyclooct-6-ene, and the second rearranges to bicyclodec-8-ene and forms the products from transannular insertion, i.e., tricyclo2,4>decane and tricyclo2,4>decane.The difference in the direction of stabilization in these carbenes is due to the geometry of the arrangement of the three-membered ring in relation to the vacant p orbital.

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