920941-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 920941-20-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,2,0,9,4 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 920941-20:
(8*9)+(7*2)+(6*0)+(5*9)+(4*4)+(3*1)+(2*2)+(1*0)=154
154 % 10 = 4
So 920941-20-4 is a valid CAS Registry Number.
920941-20-4Relevant academic research and scientific papers
Synthesis of 1-alkyl-3-arylamino-pyrrole-2,5-diones
Chepyshev,Mazurkevich,Lebed,Prosyanik
, p. 844 - 849 (2008/09/18)
Reaction of 1-alkyl-3-alkylaminopyrrole-2,5-diones with primary arylamine hydrochlorides in methanol or DMSO gives 1-alkyl-3-arylaminopyrrole-2,5-diones which could also be obtained from the reaction of arylaminofumarates with primary aliphatic amines.
