218444-68-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 218444-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,8,4,4 and 4 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 218444-68:
(8*2)+(7*1)+(6*8)+(5*4)+(4*4)+(3*4)+(2*6)+(1*8)=139
139 % 10 = 9
So 218444-68-9 is a valid CAS Registry Number.
218444-68-9Relevant academic research and scientific papers
Design and synthesis of a pyridone-based phosphotyrosine mimetic
Fu, Jian-Min,Castelhano, Arlindo L.
, p. 2813 - 2816 (2007/10/03)
A novel pyridone-based tyrosine analog, 6, has been designed to mimic the binding interaction of SH2 domains with phosphotyrosine (pTyr) containing peptides. Synthesis of 6 features a key Pd catalyzed coupling of β- iodoalanine with phosphonomethyl 4-pyridone triflate.
