81665-07-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81665-07-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,6 and 5 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81665-07:
(7*8)+(6*1)+(5*6)+(4*6)+(3*5)+(2*0)+(1*7)=138
138 % 10 = 8
So 81665-07-8 is a valid CAS Registry Number.
81665-07-8Relevant academic research and scientific papers
THERMOLYSIS AND PHOTOLYSIS OF S-SUBSTITUTED 2,5-DIPHENYL-1,4-DITHIINS
Kobayashi, Keiji,Mutai, Kiyoshi
, p. 43 - 52 (2007/10/02)
The thermolysis of 2,5-diphenyl-1,4-dithiin-1-oxide (4) in the liquid phase induced rearrangement to 2-formyl-2,4-diphenyl-1,3-dithiole (7) and extrusion of sulfur oxide to give 2,4-diphenylthiophene (2a) as well as deoxygenation to 2,5-diphenyl-1,4-dithi
