143806-81-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143806-81-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,8,0 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 143806-81:
(8*1)+(7*4)+(6*3)+(5*8)+(4*0)+(3*6)+(2*8)+(1*1)=129
129 % 10 = 9
So 143806-81-9 is a valid CAS Registry Number.
143806-81-9Relevant articles and documents
Dispiromacrocycles: A class of diamide and diimide ionophores
Bell,Choi,Hiel
, p. 971 - 974 (2007/10/02)
A series of novel ionophores was synthesized in three steps from acrylonitrile and diethyl malonate or malononitrile via 2,8-diazaspiro[5,5]undecane-1,7-dione (7) or 2,8-diazaspiro[5,5]undecane-1,3,7,9-tetrone (8). Spirodiamide macrocycle 14 imparts selec