503559-67-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 503559-67-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,5,5 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 503559-67:
(8*5)+(7*0)+(6*3)+(5*5)+(4*5)+(3*9)+(2*6)+(1*7)=149
149 % 10 = 9
So 503559-67-9 is a valid CAS Registry Number.
503559-67-9Relevant articles and documents
Synthesis of a para-quinone macrolactam related to geldanamycin by ring closing metathesis
Lemarchand, Aude,Bach, Thorsten
, p. 9659 - 9673 (2007/10/03)
Model studies conducted with the α,β,γ,δ-unsaturated 3-alkenyl-2,4,5-trimethoxyanilides 11 revealed that a ring closing metathesis (RCM) of these compounds is possible if the ansa chain contains more than 14 atoms. The (Z)-configurated products 12c-e were
