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656252-74-3

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656252-74-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 656252-74-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,6,2,5 and 2 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 656252-74:
(8*6)+(7*5)+(6*6)+(5*2)+(4*5)+(3*2)+(2*7)+(1*4)=173
173 % 10 = 3
So 656252-74-3 is a valid CAS Registry Number.

656252-74-3Relevant articles and documents

Total Synthesis of Hamigerans and Analogues Thereof. Photochemical Generation and Diels-Alder Trapping of Hydroxy-o-quinodimethanes

Nicolaou,Gray, David L. F.,Tae, Jinsung

, p. 613 - 627 (2007/10/03)

A number of naturally occurring substances, including hamigerans, contain ring systems which are fused to an aromatic nucleus. A general and streamlined method for the construction of such benzannulated bi- and polycyclic carbon frameworks has been develo

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