849922-78-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 849922-78-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,9,9,2 and 2 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 849922-78:
(8*8)+(7*4)+(6*9)+(5*9)+(4*2)+(3*2)+(2*7)+(1*8)=227
227 % 10 = 7
So 849922-78-7 is a valid CAS Registry Number.
849922-78-7Relevant articles and documents
Synthesis of 2-alkyl-1-aryl-1,2-dihydrochromeno[2,3-c]pyrrole-3,9-dione derivatives
Vydzhak,Panchishin, S. Ya.
experimental part, p. 2391 - 2397 (2009/05/30)
A preparative procedure for the synthesis of 2-alkyl-1-aryl-1,2- dihydrochromeno[2,3-c]pyrrole-3,9-diones from methyl 4-(o-hydroxyphenyl)-2,4- dioxobutanoate, aromatic aldehyde, and aliphatic amine is described.