61705-19-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 61705-19-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,7,0 and 5 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 61705-19:
(7*6)+(6*1)+(5*7)+(4*0)+(3*5)+(2*1)+(1*9)=109
109 % 10 = 9
So 61705-19-9 is a valid CAS Registry Number.
61705-19-9Relevant articles and documents
Photoinduced Electron-Transfer-Initiated Aromatic Cyclization
Maruyama, Kazuhiro,Otsuki, Tetsuo,Tai, Seiji
, p. 52 - 60 (2007/10/02)
Photochemical reaction of substituted 1,4-naphthoquinones with 1,1-diarylethylenes led primarily to benzanthracene-7,12-dione derivatives.Evidence was obtained that the photoreaction proceeded via a photoinduced electron-transfer process.Extension of t