20897-31-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20897-31-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,9 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 20897-31:
(7*2)+(6*0)+(5*8)+(4*9)+(3*7)+(2*3)+(1*1)=118
118 % 10 = 8
So 20897-31-8 is a valid CAS Registry Number.
20897-31-8Relevant academic research and scientific papers
INTRAMOLECULAR INSERTION OF 1-ANTHRAQUINONYLNITRENE AT THE N-H BOND
Gornostaev, L.M.,Lavrikova, T.I.
, p. 795 - 798 (2007/10/02)
The thermolysis of 3-(phenylaminocarbonyl)anthra-6-isoxazolone in o-dichlorobenzene leads mainly to 1-H-2-phenylanthrapyrazoline-3,6,11-trione.During thermolysis in a mixture of o-dichlorobenzene and bromobenzene the formation of considerab