143140-24-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143140-24-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,1,4 and 0 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 143140-24:
(8*1)+(7*4)+(6*3)+(5*1)+(4*4)+(3*0)+(2*2)+(1*4)=83
83 % 10 = 3
So 143140-24-3 is a valid CAS Registry Number.
143140-24-3Relevant academic research and scientific papers
An unexpected reaction in the lactamisation of 13-azido-13-deoxy-(9S)-9-dihydroerythronolide A seco-acid derivatives
Bartra,Urpi,Vilarrasa
, p. 3669 - 3672 (2007/10/02)
By reduction of the title compounds (azido acid derivatives 2) and cyclisation in situ, either the desired lactam 3 or unexpected acyl triazene 4 can be predominantly obtained, depending on the reaction conditions.
