269409-64-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 269409-64-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,9,4,0 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 269409-64:
(8*2)+(7*6)+(6*9)+(5*4)+(4*0)+(3*9)+(2*6)+(1*4)=175
175 % 10 = 5
So 269409-64-5 is a valid CAS Registry Number.
269409-64-5Relevant articles and documents
Recent advances in the synthesis of pamamycin-607
Metz, Peter,Bernsmann, Heiko
, p. 383 - 384 (1999)
Using sultones as crucial intermediates, a short and highly stereoselective synthesis of a precursor of the larger fragment and the methyl ester of the smaller fragment of the macrodiolide pamamycin-607 was achieved.