169138-82-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 169138-82-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,1,3 and 8 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 169138-82:
(8*1)+(7*6)+(6*9)+(5*1)+(4*3)+(3*8)+(2*8)+(1*2)=163
163 % 10 = 3
So 169138-82-3 is a valid CAS Registry Number.
169138-82-3Relevant articles and documents
A Novel Chiral Cyclopentadienyl Ligand Based on Ephedrine
Zeijden, Adolphus A. H. van der
, p. 913 - 918 (1995)
Natural (-)-(1R,2S)-ephedrine was used as a starting material for the preparation of a novel chiral cyclopentadienyl ligand in a three-step procedure.The new ligand contains a nitrogen atom suitable for chelation to a transition metal, as well as two stereogenic centers.