1189116-43-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1189116-43-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,9,1,1 and 6 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1189116-43:
(9*1)+(8*1)+(7*8)+(6*9)+(5*1)+(4*1)+(3*6)+(2*4)+(1*3)=165
165 % 10 = 5
So 1189116-43-5 is a valid CAS Registry Number.
1189116-43-5Relevant articles and documents
Phosphine-catalyzed reaction of cyanohydrins with activated alkynes
Siby, Acetou,Loreau, Olivier,Taran, Frederic
, p. 2365 - 2370 (2009)
A new method for preparing α-cyanoacrylates and α-cyanoenones is described. The procedure uses a phosphine-catalyzed α-C addition of cyanide ion, generated in situ from cyanohydrins, to activated alkynes. An unexpected tandem reaction producing benzyliden