109238-93-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109238-93-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,2,3 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 109238-93:
(8*1)+(7*0)+(6*9)+(5*2)+(4*3)+(3*8)+(2*9)+(1*3)=129
129 % 10 = 9
So 109238-93-9 is a valid CAS Registry Number.
109238-93-9Relevant academic research and scientific papers
cis-TRIS-?-HOMOBENZENES FROM cis-BENZENETRIOXIDE
Ruecker, Christoph,Prinzbach, Horst
, p. 4099 - 4102 (2007/10/02)
In benzene trioxide regiospecific (scyllo) threefold substitution is achieved with selected carbanions - opening up promising pathways to cis-tris-?-homobenzenes
