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205759-43-9

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205759-43-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 205759-43-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,7,5 and 9 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 205759-43:
(8*2)+(7*0)+(6*5)+(5*7)+(4*5)+(3*9)+(2*4)+(1*3)=139
139 % 10 = 9
So 205759-43-9 is a valid CAS Registry Number.

205759-43-9Relevant articles and documents

1,2-Ethylene-3,3-bis(4′,4″-dimethoxytrityl chloride) (E-DMT): Synthesis and applications of a novel protecting reagent

Oka, Natsuhisa,Sanghvi, Yogesh S.,Theodorakis, Emmanuel A.

, p. 823 - 826 (2007/10/03)

1,2-Ethylene-3,3-bis(4′,4″-dimethoxytrityl chloride), (E-DMT) was developed as a novel, bifunctional protecting reagent. This new compound was found to have a potential as a multipurpose acid-labile protecting reagent which can afford a 5′,5′-tritylthymidine dimer and a unique 5′,3′-cyclic protected thymidine derivative in modest to good yields.

Troger's base molecular scaffolds in dicarboxylic acid recognition

Goswami, Shyamaprosad,Ghosh, Kumaresh,Dasgupta, Swagata

, p. 1907 - 1914 (2007/10/03)

Artificial receptors (1-5) have been designed and synthesized from simple precursors. The chain length selectivity studies of dicarboxylic acids within the cavities of new fluorescent Troger's base molecular frameworks (1- 3) have been carried out with a critical examination of their role of rigidity as well as flexibility in selective binding in comparison to receptor 5. The chiral resolution of the racemic Troger's base receptors (1 and 2) by chiral recognition with (+)- camphoric acid using hydrogen-bonding interactions has been studied.

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