24919-51-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 24919-51-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,4,9,1 and 9 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 24919-51:
(7*2)+(6*4)+(5*9)+(4*1)+(3*9)+(2*5)+(1*1)=125
125 % 10 = 5
So 24919-51-5 is a valid CAS Registry Number.
24919-51-5Relevant articles and documents
A Versatile Synthesis of 3H-1(H),4(H)-Benzodiazepin-2,5-diones
Mohiuddin, G.,Reddy, P. S. N.,Ahmed, Khalil,Ratnam, C. V.
, p. 905 - 907 (2007/10/02)
Reaction of isatoic anhydrides (1) and α-amino acids (2) in glacial acetic acid under reflux gave 3H-1(H),4(H)-benzodiazepin-2,5-diones (3) in good yields.These compounds have been characterised by UV, IR, mass, PMR and 13C-NMR spectra.
