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1238622-75-7

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1238622-75-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1238622-75-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,8,6,2 and 2 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1238622-75:
(9*1)+(8*2)+(7*3)+(6*8)+(5*6)+(4*2)+(3*2)+(2*7)+(1*5)=157
157 % 10 = 7
So 1238622-75-7 is a valid CAS Registry Number.

1238622-75-7Relevant academic research and scientific papers

Enantioselective Cationic Polyene Cyclization vs Enantioselective Intramolecular Carbonyl-Ene Reaction

Zhao, Yu-Jun,Li, Bin,Tan, Li-Jun Serena,Shen, Zhi-Liang,Loh, Teck-Peng

supporting information; experimental part, p. 10242 - 10244 (2010/09/07)

This paper describes highly efficient catalytic enantioselective cationic polyene cyclization and catalytic enantioselective intramolecular carbonyl-ene reaction in good to high yields with high enantioselectivities. The intimate relationship and mechanistic differences between the two enantioselective reactions were studied in detail. In addition, the cyclization products are versatile and useful building blocks for natural products and pharmaceuticals syntheses.

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