134840-63-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134840-63-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,8,4 and 0 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 134840-63:
(8*1)+(7*3)+(6*4)+(5*8)+(4*4)+(3*0)+(2*6)+(1*3)=124
124 % 10 = 4
So 134840-63-4 is a valid CAS Registry Number.
134840-63-4Relevant academic research and scientific papers
Bis(arylsulphonyl)acetylenes
Pasquato, Lucia,De Lucchi, Ottorino,Krotz, Liliana
, p. 2177 - 2178 (2007/10/02)
Hitherto unknown bis(arylsulphonyl)acetylenes 1 have been prepared via dimethyldioxirane oxidation of the corresponding sulphide; the acetylenes exhibit high reactivity in Diels-Alder and Michael reactions.
