939430-45-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 939430-45-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,9,4,3 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 939430-45:
(8*9)+(7*3)+(6*9)+(5*4)+(4*3)+(3*0)+(2*4)+(1*5)=192
192 % 10 = 2
So 939430-45-2 is a valid CAS Registry Number.
939430-45-2Relevant academic research and scientific papers
Kuehni, Joel,Belser, Peter
, p. 1915 - 1918 (2007)
A dithienylethene derivative containing a cyclobutene-1,2-dione skeleton does not exhibit photochromic properties. However, when both ketone functions are protected with cyclic acetal groups, photochromic behavior is observed.
