111998-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111998-91-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,9,9 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 111998-91:
(8*1)+(7*1)+(6*1)+(5*9)+(4*9)+(3*8)+(2*9)+(1*1)=145
145 % 10 = 5
So 111998-91-5 is a valid CAS Registry Number.
111998-91-5Relevant academic research and scientific papers
ASYMMETRIC SYNTHESES BASED ON HEXAHYDRO-4,4,7-TRIMETHYL-1,3-BENZOXATHIANS
Eliel, Ernest L.
, p. 73 - 96 (2007/10/02)
Earlier work concerned with a highly stereoselective asymmetric synthesis based on a 1,3-oxathiane as the chiral auxiliary reagent is reviewed and recent applications to the synthesis of the four stereoisomers of malyngolide, of (R)-(+)-γ-caprolactone (a
