123845-17-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123845-17-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,8,4 and 5 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 123845-17:
(8*1)+(7*2)+(6*3)+(5*8)+(4*4)+(3*5)+(2*1)+(1*7)=120
120 % 10 = 0
So 123845-17-0 is a valid CAS Registry Number.
123845-17-0Relevant articles and documents
Macrocyclic polyether tetralactams I: Synthesis and cyclization studies
Duriez,Pigot,Picard,Cazaux,Tisnes
, p. 4347 - 4358 (2007/10/02)
A three-step method for the synthesis of new 18,21 or 24-membered macrocyclic tetralactams with two dimethyleneoxy moieties is described. The method consists in the ring closure of a bis-secondary amine with a diamide diacid derivative activated by the th