1220893-85-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1220893-85-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,0,8,9 and 3 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1220893-85:
(9*1)+(8*2)+(7*2)+(6*0)+(5*8)+(4*9)+(3*3)+(2*8)+(1*5)=145
145 % 10 = 5
So 1220893-85-5 is a valid CAS Registry Number.
1220893-85-5Relevant academic research and scientific papers
Enantioselective synthesis of daurichromenic acid and confluentin
Liu, Kegang,Woggon, Woif-D.
experimental part, p. 1033 - 1036 (2010/04/25)
The first asymmetric synthesis of daurichromenic acid and confluentin is described. The key step of the sequence leading to both natural products is a highly enantioselective domino aldol/oxa Michael, reaction (97 % ee) of farnesal and 2-methoxy-4-methylsalicylaldehyde.
