144730-54-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144730-54-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,7,3 and 0 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 144730-54:
(8*1)+(7*4)+(6*4)+(5*7)+(4*3)+(3*0)+(2*5)+(1*4)=121
121 % 10 = 1
So 144730-54-1 is a valid CAS Registry Number.
144730-54-1Relevant articles and documents
New methods of synthesis of N-substituted carbamates from 4-hydroxycoumarin
Speziale,Sakellariou,Hamdi
, p. 921 - 922 (2007/10/02)
The synthesis of a new series of compounds, the N-(methylene-4-oxocoumarinyl)carbamates 3 by condensation of carbamates 2 with 4-hydroxycoumarin (1) in the presence of ethyl orthoformate in good yields is reported.
