118757-50-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 118757-50-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,7,5 and 7 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 118757-50:
(8*1)+(7*1)+(6*8)+(5*7)+(4*5)+(3*7)+(2*5)+(1*0)=149
149 % 10 = 9
So 118757-50-9 is a valid CAS Registry Number.
118757-50-9Relevant academic research and scientific papers
VINYLSPIROPENTANE
Zefirov, N. S.,Kozhushkov, S. I.,Kuznetsova, T. S.,Lukin, K. A.,Kazimirchik, I. V.
, p. 605 - 610 (2007/10/02)
The cyclopropanation of (2-X-ethyl)-substituted allenes with diazomethane in the presence of palladium acetate led to the formation of derivatives of methylenecyclopropane and spiropentane.The elimination of HX from the latter gave vinylspiropentane.
