109746-40-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109746-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,7,4 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 109746-40:
(8*1)+(7*0)+(6*9)+(5*7)+(4*4)+(3*6)+(2*4)+(1*0)=139
139 % 10 = 9
So 109746-40-9 is a valid CAS Registry Number.
109746-40-9Relevant academic research and scientific papers
Bis(trifluoromethyl)sulfine, (CF3)2C=SO: Addition Reactions with Thiols, Amine N-Oxides, Ethers, and 1,3-Dipoles
Schwab, Michael,Sundermeyer, Wolfgang
, p. 75 - 80 (2007/10/02)
Bis(trifluoromethyl)sulfine (suloxide, 8) reacts with thiols via sulfinic acid S-esters as intermediates, e.g. 6 and 7, to give unsymmetrically substituted disulfanes 1 and 2.The sulfinic acid ethyl ester 9 is obtained under