1256668-26-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1256668-26-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,6,6,6 and 8 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1256668-26:
(9*1)+(8*2)+(7*5)+(6*6)+(5*6)+(4*6)+(3*8)+(2*2)+(1*6)=184
184 % 10 = 4
So 1256668-26-4 is a valid CAS Registry Number.
1256668-26-4Relevant articles and documents
Synthesis of hexacyclic parnafungin A and C models
Zhou, Quan,Snider, Barry B.
, p. 8224 - 8233 (2010)
A convergent, practical route to unstable hexacyclic parnafungin A and C models has been developed. Two iodoxanthones were prepared in four or five steps (33-50% overall yield). Suzuki-Miyaura coupling of the iodoxanthones with excess readily available 3-
