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496789-41-4

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496789-41-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 496789-41-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,6,7,8 and 9 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 496789-41:
(8*4)+(7*9)+(6*6)+(5*7)+(4*8)+(3*9)+(2*4)+(1*1)=234
234 % 10 = 4
So 496789-41-4 is a valid CAS Registry Number.

496789-41-4Downstream Products

496789-41-4Relevant articles and documents

Chemistry and biology of diazonamide A: First total synthesis and confirmation of the true structure

Nicolaou,Chen, David Y.-K.,Huang, Xianhai,Ling, Taotao,Bella, Marco,Snyder, Scott A.

, p. 12888 - 12896 (2004)

With the addition of a tenth ring, the exchange of an oxygen atom for a nitrogen in the heart of the molecule, and a different terminal residue, the revised architecture for diazonamide A (1) provided an even more challenging molecular puzzle for chemical synthesis than its predecessor. In this article, we detail the first successful total synthesis of diazonamide A, an endeavor which not only verified its proper connectivities and established the stereochemistry of its previously unassignable C-37 chiral center, but which also was attended by the development of several new synthetic strategies and tactics.

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