131559-22-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131559-22-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,5,5 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 131559-22:
(8*1)+(7*3)+(6*1)+(5*5)+(4*5)+(3*9)+(2*2)+(1*2)=113
113 % 10 = 3
So 131559-22-3 is a valid CAS Registry Number.
131559-22-3Relevant academic research and scientific papers
A NEW INTRAMOLECULAR ANNULATION APPROACH LEADING TO 1-OXO-PHENANTHRENEQUINONE DERIVATIVES
Maurya, Rakesh,Ghera, Eugene
, p. 5179 - 5180 (2007/10/02)
Aromatic compounds bearing epoxide and phenylsulfonyl groups at two vicinal benzylic positions and a malonate group in the epoxidized side chain undergo chemoselectively anionic annulations leading to tricyclic angular systems.
