81040-62-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81040-62-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,0,4 and 0 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81040-62:
(7*8)+(6*1)+(5*0)+(4*4)+(3*0)+(2*6)+(1*2)=92
92 % 10 = 2
So 81040-62-2 is a valid CAS Registry Number.
81040-62-2Relevant articles and documents
Synthesis of Mono- and Sesquiterpenoids, X. Synthesis of Sporogen-AO 1 (13-Deoxyphomenone), a Sporogenic Sesquiterpene from Aspergillus oryzae
Mori, Kenji,Tamura, Hiroshi
, p. 97 - 106 (2007/10/02)
The total synthesis of the enantiomers of sporogen-AO 1 was achieved in 25 steps from 2,3-dimethylhydroquinone (5).Only the natural (+)-enantiomer was bioactive on Aspergillus oryzae.