1220893-86-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1220893-86-6 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 6 respectively.
Calculate Digit Verification of CAS Registry Number 1220893-86:
(9*1)+(8*2)+(7*2)+(6*0)+(5*8)+(4*9)+(3*3)+(2*8)+(1*6)=146
146 % 10 = 6
So 1220893-86-6 is a valid CAS Registry Number.
1220893-86-6Relevant articles and documents
Enantioselective synthesis of daurichromenic acid and confluentin
Liu, Kegang,Woggon, Woif-D.
, p. 1033 - 1036 (2010)
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.