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34243-40-8

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34243-40-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34243-40-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,2,4 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 34243-40:
(7*3)+(6*4)+(5*2)+(4*4)+(3*3)+(2*4)+(1*0)=88
88 % 10 = 8
So 34243-40-8 is a valid CAS Registry Number.

34243-40-8Relevant articles and documents

Selenonium ionic liquid as an efficient catalyst for the synthesis of thioacetals under solvent-free conditions

Lenard?o, Eder J.,Borges, Elton L.,Mendes, Samuel R.,Perin, Gelson,Jacob, Raquel G.

, p. 1919 - 1921 (2008/09/19)

Acidic ionic liquid butyl ethyl phenyl selenonium tetrafluoroborate, [BEPSe]BF4, was successfully employed as a catalyst for the synthesis of several dithioacetals in the absence of a solvent. The method is general and selectively afforded thioacetals derived from aldehydes and ketones in good yields.

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