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20963-89-7

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20963-89-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20963-89-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,6 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 20963-89:
(7*2)+(6*0)+(5*9)+(4*6)+(3*3)+(2*8)+(1*9)=117
117 % 10 = 7
So 20963-89-7 is a valid CAS Registry Number.

20963-89-7Relevant articles and documents

Tetracyanoanthraquinodimethanes with a chiral amide group: Preparation, properties, and charge-transfer photochirogenetic reaction with 1,2-dianisylacenaphthene-1,2-diol

Suzuki, Takanori,Ichioka, Koji,Higuchi, Hiroki,Kawai, Hidetoshi,Fujiwara, Kenshu,Ohkita, Masakazu,Tsuji, Takashi,Takahashi, Yasutake

, p. 5592 - 5598 (2007/10/03)

A series of butterfly-shaped tetracyanoanthraquinodimethanes (TCNAQs) with a chiral amide auxiliary 1a-f were prepared from the corresponding anthraquinones. They are stronger acceptors than the unsubstituted derivative and undergo one-wave two-electron r

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