111601-43-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111601-43-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,6,0 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 111601-43:
(8*1)+(7*1)+(6*1)+(5*6)+(4*0)+(3*1)+(2*4)+(1*3)=65
65 % 10 = 5
So 111601-43-5 is a valid CAS Registry Number.
111601-43-5Relevant articles and documents
Selected Reactions on the o-Aminonitrile System of Substituted Pyrroles
Eger, Kurt,Pfahl, Johannes Georg,Folkers, Gerd,Roth, Hermann J.
, p. 425 - 430 (2007/10/02)
The synthesis of the difficult to obtain pyrrolopyrimidine-2,4-diamine (4) is reported.Furthermore, some unexpected reactions on the 2-aminopyrrole-3-carbonitrile system are described 15-17.