272457-85-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 272457-85-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,2,4,5 and 7 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 272457-85:
(8*2)+(7*7)+(6*2)+(5*4)+(4*5)+(3*7)+(2*8)+(1*5)=159
159 % 10 = 9
So 272457-85-9 is a valid CAS Registry Number.
272457-85-9Relevant articles and documents
Ruthenium-promoted diaryl ether synthesis in the construction of the F- O-G ring system of a teicoplanin model
Pearson, Anthony J.,Belmont, Philippe O.
, p. 1671 - 1675 (2007/10/03)
An end-game approach is described for the synthesis of glycopeptide antibiotics related to teicoplanin, using ruthenium-promoted diaryl ether formation, followed by cycloamidation. (C) 2000 Elsevier Science Ltd.