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87598-68-3

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87598-68-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87598-68-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,5,9 and 8 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 87598-68:
(7*8)+(6*7)+(5*5)+(4*9)+(3*8)+(2*6)+(1*8)=203
203 % 10 = 3
So 87598-68-3 is a valid CAS Registry Number.

87598-68-3Relevant articles and documents

Highly efficient synthesis of tetra benzo spiro bis-crown ether

Moradgholi, Fatemeh,Vahedi, Hooshang,Lari, Jalil

, p. 85 - 90 (2015/06/23)

Novel spiro bis-crown ethers derivatives with four benzo units connected via one carbon bridges have been prepared. These compounds represent well preorganized cavities with interesting complexation abilities towards cations. These macrocyclic were prepared by a four-step via template method by utilizing simple precursors catechol, oliethylen glycol and penta erythritol tetra bromide in good yield. Additionally, cesium carbonate could be used as an excellent base for these reactions.

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