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22981-96-0

22981-96-0

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22981-96-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22981-96-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,9,8 and 1 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 22981-96:
(7*2)+(6*2)+(5*9)+(4*8)+(3*1)+(2*9)+(1*6)=130
130 % 10 = 0
So 22981-96-0 is a valid CAS Registry Number.

22981-96-0Relevant articles and documents

REACTION OF cis-BICYCLONONA-3,7-DIENE WITH IODINE. SYNTHESIS OF TRICYCLO3,7>NONA-4,8-DIENE (BREXA-4,8-DIENE)

Lukovskaya, E. V.,Bobyleva, A. A.,Pekhk, T. I.,Dubitskaya, N. F.,Petrushenkova, I. A.,Belikova, N. A.

, p. 1311 - 1317 (2007/10/02)

The reaction of iodine with cis-bicyclonona-3,7-diene is accompanied by regioselective and stereoselective transannular cyclization with the formation of endo-4,exo-8-diiodobrexane.Methods were developed for the production of endo-9-iodobrex-4-ene and brexa-4,8-diene with yields of 26 and 20percent respectively.The mechanism of transannular cyclization is discussed.

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