173439-53-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 173439-53-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,4,3 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 173439-53:
(8*1)+(7*7)+(6*3)+(5*4)+(4*3)+(3*9)+(2*5)+(1*3)=147
147 % 10 = 7
So 173439-53-7 is a valid CAS Registry Number.
173439-53-7Relevant academic research and scientific papers
Acylation-cyclization of allenes
Bates, Roderick W.,Rama-Devi, Thota,Ko, Huei-Huei
, p. 12939 - 12954 (2007/10/02)
Allenes bearing a nucleophilic group cyclize on treatment with acyltetracarbonyl cobalt complexes in the presence of mild bases. Various nucleophilic groups and cobalt complexes can be used to give highly functionalized pyrrolidines, cyclopentanes and tet
