3450-72-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3450-72-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,4,5 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 3450-72:
(6*3)+(5*4)+(4*5)+(3*0)+(2*7)+(1*2)=74
74 % 10 = 4
So 3450-72-4 is a valid CAS Registry Number.
3450-72-4Relevant academic research and scientific papers
SYNTHESIS OF 3-ARYLCOUMARINS, 2-AROYLBENZOFURANS AND 3-ARYL-2H-1,4-BENZOXAZINES UNDER PHASE-TRANSFER CATALYSIS CONDITIONS
Sabitha, G.,Rao, A. V. Subba
, p. 341 - 354 (2007/10/02)
The synthesis of 3-arylcoumarins, 2-aroylbenzofurans and 3-aryl-2H-1,4-benzoxazines under phase transfer catalysis conditions is described.