127394-90-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 127394-90-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,3,9 and 4 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 127394-90:
(8*1)+(7*2)+(6*7)+(5*3)+(4*9)+(3*4)+(2*9)+(1*0)=145
145 % 10 = 5
So 127394-90-5 is a valid CAS Registry Number.
127394-90-5Relevant articles and documents
About the Synthesis of N-1-Substituted 3-Aminopyrroles. A Comparison
Almerico, Anna Maria,Cirrincione, Girolamo,Aiello, Enrico,Dattolo, Gaetano
, p. 1631 - 1633 (2007/10/02)
A general method for the preparation of 3-amino-1-methylpyrroles in excellent yields is reported.The key step involves the N-methylation of the nitro derivatives 2, under phase transfer catalysis conditions.