1158568-59-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1158568-59-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,5,8,5,6 and 8 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1158568-59:
(9*1)+(8*1)+(7*5)+(6*8)+(5*5)+(4*6)+(3*8)+(2*5)+(1*9)=192
192 % 10 = 2
So 1158568-59-2 is a valid CAS Registry Number.
1158568-59-2Relevant academic research and scientific papers
Synthesis of some new spiropyrans containing indoline moiety
El-Zohry, Maher F.,Elossaily, Yasser A.,Mohamed, Thanaa A.,Hussein, Essam M.
experimental part, p. 195 - 198 (2009/04/06)
3-dicyanomethylidine-2-oxoindolines 1a-c reacted with different cyclic carbonyl compounds to afford new spiroheterocyclic derivatives 2a-c to 5a-c which are analogues of some reported biologically active spiropolycyclic compounds.
