143741-69-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143741-69-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,7,4 and 1 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 143741-69:
(8*1)+(7*4)+(6*3)+(5*7)+(4*4)+(3*1)+(2*6)+(1*9)=129
129 % 10 = 9
So 143741-69-9 is a valid CAS Registry Number.
143741-69-9Relevant articles and documents
A CONVENIENT SYNTHESIS OF VINYL SULFIDES
Rodriguez, Abimael D.,Nickon, Alex
, p. 4443 - 4448 (2007/10/02)
Dithioketals are converted in good yields to vinyl sulfides by action of diethylzinc and methylene iodide.The reaction has been successfully applied to dialkyl and diaryl dithioketals, to spirocyclic analogs, and to a dithioacetal.A monothioketal produced a vinyl ether (enol ether) with the same reagent.
