137255-89-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137255-89-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,5 and 5 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 137255-89:
(8*1)+(7*3)+(6*7)+(5*2)+(4*5)+(3*5)+(2*8)+(1*9)=141
141 % 10 = 1
So 137255-89-1 is a valid CAS Registry Number.
137255-89-1Relevant academic research and scientific papers
An efficient synthesis of 4-aryl and 4-vinylphenylalanines by stille cross-coupling reaction
Morera, Enrico,Ortar, Giorgio
, p. 1403 - 1405 (2007/10/03)
The palladium-catalyzed reaction of N-Boc-4-trimethylstannyl-L-phenylalanine methyl ester (1) with a variety of aryl and vinyl iodides and triflates (2) affords the corresponding 4-aryl and 4-vinylphenylalanines 3 in synthetically useful yields.
