211691-08-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 211691-08-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,6,9 and 1 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 211691-08:
(8*2)+(7*1)+(6*1)+(5*6)+(4*9)+(3*1)+(2*0)+(1*8)=106
106 % 10 = 6
So 211691-08-6 is a valid CAS Registry Number.
211691-08-6Relevant articles and documents
gem-diacetates as carbonyl surrogates for asymmetric synthesis. Total syntheses of sphingofungins E and F
Trost,Lee
, p. 12191 - 12201 (2007/10/03)
The equivalent of an asymmetric addition to a carbonyl group with a stabilized anion is accomplished by discriminating between the enantiotopic C-O single bonds of a gem-diacetate. In this way, enantioselective total syntheses of two antifugal agents, sph