190521-81-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 190521-81-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,5,2 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 190521-81:
(8*1)+(7*9)+(6*0)+(5*5)+(4*2)+(3*1)+(2*8)+(1*1)=124
124 % 10 = 4
So 190521-81-4 is a valid CAS Registry Number.
190521-81-4Relevant academic research and scientific papers
Search for surrogates: A study of endothelin receptor antagonist structure activity relationships
Raju,Okun, Ilya,Stavros, Fiona,Chan, Ming Fai
, p. 933 - 938 (2007/10/03)
The aryloxymethylene group was used as a replacement for an ester or amide bond present in a series of ET(A) selective endothelin antagonists. The effect of such replacement on the binding affinity is described.
