28081-90-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28081-90-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,0,8 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 28081-90:
(7*2)+(6*8)+(5*0)+(4*8)+(3*1)+(2*9)+(1*0)=115
115 % 10 = 5
So 28081-90-5 is a valid CAS Registry Number.
28081-90-5Relevant academic research and scientific papers
Synthese der (3S,4R,3'S,4'R)- und (3S,4S,3'S,4'S)-Crustaxanthine sowie weiterer Verbindungen mit 3,4-Dihydroxy-β-Endgruppen
Buschor, Daniel Jacques,Eugster, Conrad Hans
, p. 1002 - 1021 (2007/10/02)
Starting from 3, the enantiomerically pure title compounds were synthesized in eight steps.Spectra and HPLC systems are presented that allow a distinction between these isomers.
