321162-53-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 321162-53-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,1,1,6 and 2 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 321162-53:
(8*3)+(7*2)+(6*1)+(5*1)+(4*6)+(3*2)+(2*5)+(1*3)=92
92 % 10 = 2
So 321162-53-2 is a valid CAS Registry Number.
321162-53-2Relevant articles and documents
Synthesis of 2- and 4-oxo-1H-1-azaanthracene-9,10-diones from 2-amino-1,4-naphthoquinone
Marcos, Alicia,Pedregal, Carmen,Avendano, Carmen
, p. 12941 - 12952 (1994)
In spite of the poor nucleophilicity of its amino group, which is considered to have an "amide like" character, 2-amino-1,4-naphthoquinone reacts with β-dielectrophiles to give 2-oxo- or 4-oxo-1H-1-azaanthracene-9,10-diones.