118143-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 118143-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,1,4 and 3 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 118143-80:
(8*1)+(7*1)+(6*8)+(5*1)+(4*4)+(3*3)+(2*8)+(1*0)=109
109 % 10 = 9
So 118143-80-9 is a valid CAS Registry Number.
118143-80-9Relevant academic research and scientific papers
Synthetic Route to the "Tricarbonyl" Region of FK-506
Egbertson, Melissa,Danishefsky, Samuel J.
, p. 11 - 12 (2007/10/02)
Coupling of a complex lithiodithiane to (S)-tert-butyl N-methoxalylpipecolate leads in three steps to the title substructure.
