159389-36-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 159389-36-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,3,8 and 9 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 159389-36:
(8*1)+(7*5)+(6*9)+(5*3)+(4*8)+(3*9)+(2*3)+(1*6)=183
183 % 10 = 3
So 159389-36-3 is a valid CAS Registry Number.
159389-36-3Relevant articles and documents
Synthesis of the Pentacyclic Intermediate for Dynemicin A and Unusual Formation of Spiro-oxindole Ring
Okita, Takaaki,Isobe, Minoru
, p. 11143 - 11152 (2007/10/02)
A pentacyclic compound was synthesized as an important intermediate of antitumor antibiotic dynemicins.The key step was the intramolecular Heck reaction using catalytic Pd reagent.During the course of the synthetic studies, an unusual spiro ring compound
