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1422259-89-9

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1422259-89-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1422259-89-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,2,2,5 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1422259-89:
(9*1)+(8*4)+(7*2)+(6*2)+(5*2)+(4*5)+(3*9)+(2*8)+(1*9)=149
149 % 10 = 9
So 1422259-89-9 is a valid CAS Registry Number.

1422259-89-9Downstream Products

1422259-89-9Relevant articles and documents

Selectivity of Br/Li exchange and deprotonation of 4,4′-dibromo-3, 3′-bithiophene for synthesis of symmetrical and unsymmetrical dithienoheteroaromatic rings

Han, Hui,Zhao, Wenling,Song, Jinsheng,Li, Chunli,Wang, Hua

, p. 2726 - 2730 (2013)

The novel selective synthesis of symmetrical and unsymmetrical dithienoheteroaromatic rings (DTHAs) has been developed via intramolecular cyclization of 4,4′-dibromo-3,3′-bithiophene (3). Four reaction conditions including n-BuLi/Et2O, n-BuLi/T

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