111922-48-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111922-48-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,9,2 and 2 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 111922-48:
(8*1)+(7*1)+(6*1)+(5*9)+(4*2)+(3*2)+(2*4)+(1*8)=96
96 % 10 = 6
So 111922-48-6 is a valid CAS Registry Number.
111922-48-6Relevant articles and documents
A TOTAL SYNTHESIS OF POLYETHER ANTIBIOTIC (-)-A23187 (CALCIMYCIN)
Negri, David P.,Kishi, Yoshito
, p. 1063 - 1066 (2007/10/02)
A total synthesis of (-)-A23187 (calcimycin) was accomplished by a convergent approach.The key step of synthesis was the stereospecific cyclization of the β-hydroxy ketone into the spiroketal under basic conditions.