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93847-43-9

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93847-43-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93847-43-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,8,4 and 7 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 93847-43:
(7*9)+(6*3)+(5*8)+(4*4)+(3*7)+(2*4)+(1*3)=169
169 % 10 = 9
So 93847-43-9 is a valid CAS Registry Number.

93847-43-9Downstream Products

93847-43-9Relevant articles and documents

A SIMPLE SINTHESIS OF TROPONES AND RELATED COMPOUNDS

Barbier, Michael,Barton, Derek H. R.,Devys, Michel,Topgi, Ravindra Satish

, p. 5031 - 5038 (2007/10/02)

Cyclohexa-2,4- and 2,5-dienones bearing position 2 or 4 a dihalomethyl group (halogen = chlorine or bromine) are smoothly reduced by tri-butyltin hydride to furnish appropriately substituted tropones.Modification of the substituents permits access to a tropolone and to less substituted tropones.The mechanism of this ring expansion process has been discussed.

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