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56189-94-7

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56189-94-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56189-94-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,1,8 and 9 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 56189-94:
(7*5)+(6*6)+(5*1)+(4*8)+(3*9)+(2*9)+(1*4)=157
157 % 10 = 7
So 56189-94-7 is a valid CAS Registry Number.

56189-94-7Downstream Products

56189-94-7Relevant articles and documents

Synthesis of 4-methyldienoates using a vinylogous horner-wadsworth-emmons reagent. application to the synthesis of trichostatic acid

Markiewicz, John T.,Schauer, Douglas J.,Loefstedt, Joakim,Corden, Steven J.,Wiest, Olaf,Helquist, Paul

supporting information; experimental part, p. 2061 - 2064 (2010/06/16)

Chemical Equation Presented The utility of the unsaturated phosphonate 1 as a vinylogous Horner-Wadsworth-Emmons reagent was explored in reactions with, aldehydes affording 4-methyldienoate esters. Factors that affect E/Z selectivity were studied. A simplified synthesis of trichostatic acid 3 was accomplished, to demonstrate utility of this reagent.

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