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404356-65-6

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404356-65-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 404356-65-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,4,3,5 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 404356-65:
(8*4)+(7*0)+(6*4)+(5*3)+(4*5)+(3*6)+(2*6)+(1*5)=126
126 % 10 = 6
So 404356-65-6 is a valid CAS Registry Number.

404356-65-6Relevant articles and documents

Studies in the total synthesis of heliquinomycinone: Proof of concept and assembly of a fully mature spirocyclization precursor

Qin, Donghui,Ren, Rex X.,Siu, Tony,Zheng, Changsheng,Danishefsky, Samuel J.

, p. 4709 - 4713 (2007/10/03)

A strategy for the synthesis of heliquinomycin, a selective helicase inhibitor, hinges on the spirocyclization of precursor 3. Naphthofuran 1 and aldehyde 2 were readily prepared and used in the synthesis of 3. The key steps in the total synthesis of heli

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