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1220516-02-8

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1220516-02-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1220516-02-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,0,5,1 and 6 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1220516-02:
(9*1)+(8*2)+(7*2)+(6*0)+(5*5)+(4*1)+(3*6)+(2*0)+(1*2)=88
88 % 10 = 8
So 1220516-02-8 is a valid CAS Registry Number.

1220516-02-8Relevant articles and documents

Synthesis of N-substituted carbazolones from α-iodo enaminones via Pd(0)-catalyzed intramolecular coupling under microwave irradiation

Yun, Xi-Liu,Bi, Wen-Ying,Huang, Jian-Hui,Liu, Yu,Zhang-Negrerie, Daisy,Du, Yun-Fei,Zhao, Kang

, p. 5076 - 5080 (2012/09/25)

A variety of N-aryl and N-alkyl carbazolones were conveniently achieved in good to high yields via Pd2(dba)3-mediated intramolecular coupling of N-substituted α-iodo enaminones under microwave irradiation. The Pd(0)-catalyzed cyclization was found to proceed favorably with the more electron-deficient phenyl ring during the reactions involving unsymmetrical N,N-diaryl α-iodo enaminones. This unique property enables the construction of carbazolone skeleton containing nitro substituted benzenoid ring.

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