139517-46-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139517-46-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,5,1 and 7 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 139517-46:
(8*1)+(7*3)+(6*9)+(5*5)+(4*1)+(3*7)+(2*4)+(1*6)=147
147 % 10 = 7
So 139517-46-7 is a valid CAS Registry Number.
139517-46-7Relevant articles and documents
Photo-initiated Addition of Diphenyl Ditelluride to Acetylenes
Ogawa, Akiya,Yokoyama, Kazuyuki,Yokoyama, Hiroshi,Obayashi, Ryoichi,Kambe, Nobuaki,Sonoda, Noboru
, p. 1748 - 1750 (2007/10/02)
Diphenyl ditelluride 2 has been found to add efficiently to various acetylenes 1 upon irradiation with visible light (>400 nm), providing vic-bis(phenyltelluro)alkenes 3 in good yields.