194425-99-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 194425-99-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,4,4,2 and 5 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 194425-99:
(8*1)+(7*9)+(6*4)+(5*4)+(4*2)+(3*5)+(2*9)+(1*9)=165
165 % 10 = 5
So 194425-99-5 is a valid CAS Registry Number.
194425-99-5Relevant articles and documents
Stereoselective Horner-Wittig synthesis of (Z)-1-chlorovinyl sulfoxides
Otten, Pieter A.,Davies, Honorine M.,Van Steenis, Jan Hein,Gorter, Syb,Van Der Gen, Arne
, p. 10527 - 10544 (1997)
This paper describes the synthesis of (Z)-1-chlorovinyl sulfoxides 1 by the Horner-Wittig reaction. The required [(α-chloro)sulfinylmethyl]diphenylphosphine oxides 2 (R1=Me, c-Hex, Ph, p-Tol, p-(CF3)Ph), were prepared in high yields
