243983-04-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 243983-04-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,3,9,8 and 3 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 243983-04:
(8*2)+(7*4)+(6*3)+(5*9)+(4*8)+(3*3)+(2*0)+(1*4)=152
152 % 10 = 2
So 243983-04-2 is a valid CAS Registry Number.
243983-04-2Relevant articles and documents
Divergent diastereoselectivity in the addition of nucleophiles to tetrahydrofuran-derived oxonium ions
Shaw, Jared T.,Woerpel
, p. 8747 - 8756 (2007/10/03)
Alkyl substituted lactol acetates have been found to undergo highly stereoselective substitution reactions mediated by tin (IV) bromide. The highest selectivity is observed in the case of 4,4-di-isopropyl, 2-methyl substitution in which the selectivity de
