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528853-81-8

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528853-81-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 528853-81-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,2,8,8,5 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 528853-81:
(8*5)+(7*2)+(6*8)+(5*8)+(4*5)+(3*3)+(2*8)+(1*1)=188
188 % 10 = 8
So 528853-81-8 is a valid CAS Registry Number.

528853-81-8Downstream Products

528853-81-8Relevant articles and documents

Multicomponent cascade cycloaddition involving tropone, allenoate, and isocyanide: A rapid access to a 7,6,5-fused tricyclic skeleton

Jia, Shuanglong,Su, Shikuan,Li, Chunju,Jia, Xueshun,Li, Jian

, p. 5604 - 5607 (2014)

Multicomponent cascade cycloaddition of tropone, allenoate, and isocyanide has been disclosed. This method allows for the rapid construction of a highly unusual tricyclic skeleton in an efficient manner. The proposed transformation proceeds through [8 + 2 + 1] cycloaddition, [1,5]-H shift, and cyclization followed by an alkoxy group migration process.

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