194664-40-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 194664-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,4,6,6 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 194664-40:
(8*1)+(7*9)+(6*4)+(5*6)+(4*6)+(3*4)+(2*4)+(1*0)=169
169 % 10 = 9
So 194664-40-9 is a valid CAS Registry Number.
194664-40-9Relevant academic research and scientific papers
Stepwise synthesis of tetrasubstituted hydrazines
Grehn, Leif,Loenn, Hans,Ragnarsson, Ulf
, p. 1381 - 1382 (2007/10/03)
A new triprotected hydrazine reagent has been made and applied in alkylation/acylation reactions for stepwise synthesis of tetrasubstituted derivatives in high purity and yield.
