668486-21-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 668486-21-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,8,4,8 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 668486-21:
(8*6)+(7*6)+(6*8)+(5*4)+(4*8)+(3*6)+(2*2)+(1*1)=213
213 % 10 = 3
So 668486-21-3 is a valid CAS Registry Number.
668486-21-3Relevant articles and documents
A simple synthesis and determination of alkali metal binding selectivities of chiral macrocyclic tetraamides derived from L-alanine
Szczepanska,Tarnowski,Jurczak
, p. 1909 - 1917 (2007/10/03)
Chiral α,ω-diamines react under high-pressure conditions (10 kbar) with α,ω-dicarboxylates to give chiral cyclic tetraamides having C2-symmetry. The alkali metal (Li+, Na+, K+, Rb+, and Cs+
