500716-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 500716-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,0,7,1 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 500716-72:
(8*5)+(7*0)+(6*0)+(5*7)+(4*1)+(3*6)+(2*7)+(1*2)=113
113 % 10 = 3
So 500716-72-3 is a valid CAS Registry Number.
500716-72-3Relevant articles and documents
An efficient synthesis of carboxaldehyde derivatives of 4H-pyran-4-one
Teimuri-mofrad, Reza,Abrishami, Fatemeh
, p. 352 - 357 (2008/03/11)
We developed a general method for the synthesis of various 2-mono- and 2,6-di-carboxaldehyde substituted derivatives of 3,5-diphenyl-4H-pyran-4-one and 4H-pyran-4-one. 3,5-Diphenyl-6-methyl-4-oxo-4H-pyran-2-carboxaldehyde (4a), 6-methyl-4-oxo-4H-pyran-2-c
