143994-99-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143994-99-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,9,9 and 4 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 143994-99:
(8*1)+(7*4)+(6*3)+(5*9)+(4*9)+(3*4)+(2*9)+(1*9)=174
174 % 10 = 4
So 143994-99-4 is a valid CAS Registry Number.
143994-99-4Relevant academic research and scientific papers
Enzyme-catalysed Hydrolysis of 3,5-cis-Diacetoxy-4-trans-benzyloxymethylcyclopentene and the Synthesis of Aristeromycin Precursors
LeGrand, Darren M.,Roberts, Stanley M.
, p. 1751 - 1752 (2007/10/02)
The optically active mono-ester 2 was obtained by enzyme-catalysed hydrolysis of the diester 1 and converted into the azide 8 and the amine 13, synthetic precursors of (+)- and (-)-aristeromycin.
