103982-22-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103982-22-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,9,8 and 2 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 103982-22:
(8*1)+(7*0)+(6*3)+(5*9)+(4*8)+(3*2)+(2*2)+(1*2)=115
115 % 10 = 5
So 103982-22-5 is a valid CAS Registry Number.
103982-22-5Relevant articles and documents
Synthesis of a Soluble Nonacenetriquinone via a Bisisobenzofuran
Christopfel, William C.,Miller, Larry L.
, p. 4169 - 4175 (2007/10/02)
The known Diels-Alder reactions of 1,3-diarylisobenzofurans have been employed to develop a synthesis of a nonacenetriquinone (1).A 2:1 condensation of 2,5-bis(4-tert-butylphenyl)-3,4-diformylfuran (17) and cyclohexanedione gave the bisisobenzofuran 7.Thi
