116952-91-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 116952-91-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,9,5 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 116952-91:
(8*1)+(7*1)+(6*6)+(5*9)+(4*5)+(3*2)+(2*9)+(1*1)=141
141 % 10 = 1
So 116952-91-1 is a valid CAS Registry Number.
116952-91-1Relevant articles and documents
Synthesis of Substituted Ethenyldiazenes
Vermehren, Jan,Hanack, Michael
, p. 331 - 336 (2007/10/02)
N-(1-Chloroethenyl)-N'-tosyldiazenes 5 are potential precursors to obtaine alkyne diazonium salts 6.Their multistep synthesis starts with substituted acetic acids.The aromatic diazenes 5 are crystalline, intensively orange compounds, which melt above 100