180990-51-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 180990-51-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,0,9,9 and 0 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 180990-51:
(8*1)+(7*8)+(6*0)+(5*9)+(4*9)+(3*0)+(2*5)+(1*1)=156
156 % 10 = 6
So 180990-51-6 is a valid CAS Registry Number.
180990-51-6Relevant articles and documents
Synthesis of novel heterocycles related to the dynemicin A ring skeleton
Nicolaou,Gross,Gross, Jonathan L.,Kerr,Kerr, Michael A.
, p. 735 - 746 (2007/10/03)
Studies directed towards the construction of the CDE ring framework of dynemycin A (1) are reported. A series of quinoline based dienophiles containing an activating group (e.g. 5), reacted with acyclic dienes (e.g. 4) in a Diels-Alder fashion under incre
