72911-56-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72911-56-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,9,1 and 1 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 72911-56:
(7*7)+(6*2)+(5*9)+(4*1)+(3*1)+(2*5)+(1*6)=129
129 % 10 = 9
So 72911-56-9 is a valid CAS Registry Number.
72911-56-9Relevant articles and documents
Further Total Syntheses of Chlorine-containing Lichen Xanthones
Fitzpatrick, Leigh,Sala, Tony,Sargent, Melvyn V.
, p. 85 - 89 (2007/10/02)
The unambiguous total synthesis of eight chlorine-containing lichen xanthones by ring closure of appropriately substituted benzophenones is described.