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1526920-89-7

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1526920-89-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1526920-89-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,2,6,9,2 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1526920-89:
(9*1)+(8*5)+(7*2)+(6*6)+(5*9)+(4*2)+(3*0)+(2*8)+(1*9)=177
177 % 10 = 7
So 1526920-89-7 is a valid CAS Registry Number.

1526920-89-7Relevant articles and documents

Magnesium(ii)-catalyzed asymmetric hetero-Diels-Alder reaction of Brassard's dienes with isatins

Zheng, Jianfeng,Lin, Lili,Kuang, Yulong,Zhao, Jiannan,Liu, Xiaohua,Feng, Xiaoming

, p. 994 - 996 (2014)

The first catalytic asymmetric hetero-Diels-Alder reaction of Brassard's dienes with isatins was realized using Mg(ii)/N,N′-dioxide complexes as catalysts, affording the corresponding chiral spirolactones bearing tetrasubstituted centers in up to 99% yield with up to 99% ee and >99:1 dr within 3 hours. In the mechanism, based on the operando IR experiments, a predominant Diels-Alder pathway was found in the reaction. A possible transition state model was also proposed. This journal is

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