521980-39-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 521980-39-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,2,1,9,8 and 0 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 521980-39:
(8*5)+(7*2)+(6*1)+(5*9)+(4*8)+(3*0)+(2*3)+(1*9)=152
152 % 10 = 2
So 521980-39-2 is a valid CAS Registry Number.
521980-39-2Relevant academic research and scientific papers
Synthesis of 3-thiocyanato-1H,3H-quinoline-2,4-diones
Klasek, Antonin,Polis, Jiri,Mrkvicka, Vladimir,Kosmrlj, Janez
, p. 1315 - 1320 (2007/10/03)
4-Hydroxy-1H-quinolin-2-ones (1) react with thiocyanogen in acetic acid to the corresponding 3-thiocyanato-1H,3H-quinoline-2,4-diones (2) in good yields. In some cases, 3-bromo-1H,3H-quinoline-2,4-diones (4) were isolated as minor reaction products. Compo
