172039-97-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 172039-97-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,0,3 and 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 172039-97:
(8*1)+(7*7)+(6*2)+(5*0)+(4*3)+(3*9)+(2*9)+(1*7)=133
133 % 10 = 3
So 172039-97-3 is a valid CAS Registry Number.
172039-97-3Relevant academic research and scientific papers
New Route to Pyrrolidinocyclopropenyl Cations from 2,3-Di(tert-butylsulfanyl)cyclopropenethione
Yagyu, Yoshio,Matsumura, Noboru,Tanaka, Hirokazu,Maeda, Zyun,Inoue, Hiroo
, p. 420 - 421 (2007/10/03)
2-Pyrrolidinocyclopropenyl cations having different substituents have been prepared efficiently from 2,3-di(tert-butylsulfanyl)cyclopropenethione by substitution and S-methylation processes.
