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128593-04-4

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128593-04-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128593-04-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,5,9 and 3 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 128593-04:
(8*1)+(7*2)+(6*8)+(5*5)+(4*9)+(3*3)+(2*0)+(1*4)=144
144 % 10 = 4
So 128593-04-4 is a valid CAS Registry Number.

128593-04-4Downstream Products

128593-04-4Relevant articles and documents

Kinetics and Mechanism of Michael Addition of Pyrrolidine and Piperidine to a Polarized Double Bond

Kinastowski, Stefan,Kostecki, Marian

, p. 193 - 203 (2007/10/02)

The kinetics and mechanism of reaction of pyrrolidine and piperidine addition to trans-1-phenyl-2-(benzenesulphonyl)ethene (I) have been examined.The mechanism of addition of amines to compound I has been found to be analogous to that proposed for the reaction of trans-chalcone with amines.The addition of amine to the double bond of compound I takes place in a direct way.In the reaction of addition of amines to the polarized double bond three pathways can be distinguished: dimolecular one with participation of amide ions, dimolecular one with participation of free amine, and trimolecular one.

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