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124139-28-2

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124139-28-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124139-28-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,1,3 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 124139-28:
(8*1)+(7*2)+(6*4)+(5*1)+(4*3)+(3*9)+(2*2)+(1*8)=102
102 % 10 = 2
So 124139-28-2 is a valid CAS Registry Number.

124139-28-2Upstream product

124139-28-2Downstream Products

124139-28-2Relevant academic research and scientific papers

Substituent effects in aromatic substitution of aryltriethyltin compounds by mercuric halides

Sedaghat-Herati, M. Reza,Sharifi, Taghi

, p. 39 - 44 (2007/10/02)

Second-order rate constants are reported for the reaction of some YC6H4SnEt3 compounds with mercuric halides in tetrahydrofuran, and show that the reaction is one of low selectivity.The substituent effects can be correlated only in terms of Hammett ?-constants, and the data for the meta-methoxy group are anomalous.The results indicate that the rate determining step involves reaction of a ?-complex.Activation parameters are reported, and are in accordance with the suggested mechanism.

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