189337-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189337-23-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,3,3 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 189337-23:
(8*1)+(7*8)+(6*9)+(5*3)+(4*3)+(3*7)+(2*2)+(1*3)=173
173 % 10 = 3
So 189337-23-3 is a valid CAS Registry Number.
189337-23-3Relevant academic research and scientific papers
High-spin cation radicals of methylenephosphoranes
Wienk, Martijn M.,Janssen, René A. J.
, p. 5398 - 5403 (2007/10/03)
Novel di(cation radical)s and tri(cation radical)s are prepared by oxidation of the corresponding 1,3-phenylenebis[[(4-tert- butylphenyl)methylene]triphenylphosphorane] and 1,3,5-benzenetriyltris[[(4- tert-butylphenyl)methylene]triphenylphosphorane] precu
