159021-73-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 159021-73-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,0,2 and 1 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 159021-73:
(8*1)+(7*5)+(6*9)+(5*0)+(4*2)+(3*1)+(2*7)+(1*3)=125
125 % 10 = 5
So 159021-73-5 is a valid CAS Registry Number.
159021-73-5Relevant articles and documents
Chemistry of Indoloquinazoline: An Approach to the Marine Alkaloid Hinckdentine A
Billimoria, Adil D.,Cava, Michael P.
, p. 6777 - 6782 (2007/10/02)
The basic chemistry of indoloquinazoline (2) has been investigated for the first time.In addition, some attempts to elaborate 2 into the pentacyclic system of the marine alkaloid hinckdentine A (1A) are described.