101906-23-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 101906-23-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,1,9,0 and 6 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 101906-23:
(8*1)+(7*0)+(6*1)+(5*9)+(4*0)+(3*6)+(2*2)+(1*3)=84
84 % 10 = 4
So 101906-23-4 is a valid CAS Registry Number.
101906-23-4Relevant articles and documents
A Directed Aldol Approach to (+)-Milbemycin β3
Kocienski, Philip J.,Street, Stephen D. A.,Yeates, Clive,Campbell, Simon F.
, p. 2171 - 2182 (2007/10/02)
Key steps in a total synthesis of (+)-milbemycin β3 are the construction of the 1,7-dioxaspiroundecane (10) by a Lewis acid-catalysed intramolecular directed aldol reaction and the use of sulphone-based olefination reactions for the constr