691844-22-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 691844-22-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,1,8,4 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 691844-22:
(8*6)+(7*9)+(6*1)+(5*8)+(4*4)+(3*4)+(2*2)+(1*2)=191
191 % 10 = 1
So 691844-22-1 is a valid CAS Registry Number.
691844-22-1Relevant academic research and scientific papers
New conformationally restricted 99mTc N2S2 complexes as myocardial perfusion imaging agents
Ohmomo,Francesconi,Kung,Kung
, p. 157 - 162 (2007/10/02)
In developing 99mTc complexes as potential myocardial imaging agents, a new series of ligands based on a conformationally restricted N2S2 system were investigated. Using piperazine or homopiperazine as the starting materia