128203-44-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128203-44-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,2,0 and 3 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 128203-44:
(8*1)+(7*2)+(6*8)+(5*2)+(4*0)+(3*3)+(2*4)+(1*4)=101
101 % 10 = 1
So 128203-44-1 is a valid CAS Registry Number.
128203-44-1Relevant articles and documents
Synthese de derives du bicyclooctane
Nallet, Jean-Pierre,Oddon, Jean-Pierre,Huet, Jean
, p. 856 - 858 (2007/10/02)
We describe the synthesis of methyl 2.2-ethylenedioxy-6-oxobicyclooctane-1-carboxylate 7 obtained in four steps from cyclohexanone 3.This compound could lead to the tetracyclic ring system of Gibberellins.