90909-59-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90909-59-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,9,0 and 9 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 90909-59:
(7*9)+(6*0)+(5*9)+(4*0)+(3*9)+(2*5)+(1*9)=154
154 % 10 = 4
So 90909-59-4 is a valid CAS Registry Number.
90909-59-4Relevant academic research and scientific papers
Abnormal Products from the Exhaustive Ozone Oxidation of Phenanthrene in HCl/Methanol
Neumeister, Joachim,Griesbaum, Karl
, p. 1640 - 1642 (2007/10/02)
Exhaustive ozone treatment of phenanthrene (6) in HCl/methanol afforded unsubstituted (10a) and chloro-substituted 6H-dibenzopyran-6-ones (10b - d) in addition to the expected dimethyl 2,2'-biphenyldicarboxylate (9c).
