226247-69-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 226247-69-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,6,2,4 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 226247-69:
(8*2)+(7*2)+(6*6)+(5*2)+(4*4)+(3*7)+(2*6)+(1*9)=134
134 % 10 = 4
So 226247-69-4 is a valid CAS Registry Number.
226247-69-4Relevant academic research and scientific papers
Addition and Cycloaddition to 2- and 8-Vinylpurines
Liu, Fusheng,Dalhus, Bjorn,Gundersen, Lise-Lotte,Rise, Frode
, p. 269 - 279 (2007/10/03)
The reactivity of purines carrying an alkenyl substituent in the 2- or 8-position in nucleophilic addition and cycloaddition reactions has been studied. A vinyl substituent situated at C-8 is highly electrophilic and readily participates as a Michael acce
