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83657-08-3

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83657-08-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83657-08-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,6,5 and 7 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 83657-08:
(7*8)+(6*3)+(5*6)+(4*5)+(3*7)+(2*0)+(1*8)=153
153 % 10 = 3
So 83657-08-3 is a valid CAS Registry Number.

83657-08-3Relevant articles and documents

Synthese de N-2 alkyl (aryl) dioxo-3,5 oxadiazolidine-1,2,4

Kraus, Jean-Luis,Dugenet, Philippe,Yaouanc, Jean-Jacques

, p. 971 - 973 (2007/10/02)

The synthesis of new 3,5-dioxo-1,2,4- oxadiazolidines which are N-2 substituted bioisosters of biologically active carboxylic compounds was studied.Nitro compounds were used as starting materials, and triton B as the cyclizing base, The expected N-2 allyl and aryl substituted derivatives were obtained in satisfactory yields.

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