921446-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 921446-99-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,2,1,4,4 and 6 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 921446-99:
(8*9)+(7*2)+(6*1)+(5*4)+(4*4)+(3*6)+(2*9)+(1*9)=173
173 % 10 = 3
So 921446-99-3 is a valid CAS Registry Number.
921446-99-3Relevant articles and documents
Synthesis of 1-alkyl-3-arylamino-pyrrole-2,5-diones
Chepyshev,Mazurkevich,Lebed,Prosyanik
, p. 844 - 849 (2007)
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.
