104581-35-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104581-35-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,5,8 and 1 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 104581-35:
(8*1)+(7*0)+(6*4)+(5*5)+(4*8)+(3*1)+(2*3)+(1*5)=103
103 % 10 = 3
So 104581-35-3 is a valid CAS Registry Number.
104581-35-3Relevant articles and documents
Ethynyl-cyclohexanol: an efficient acetylene surrogate in Sonogashira coupling
Csékei, Márton,Novák, Zoltán,Kotschy, András
, p. 975 - 982 (2008/09/17)
The Sonogashira coupling of aryl halides in the presence of 1-ethynyl-cyclohexanol as an acetylene source provides an efficient method for the synthesis of diarylacetylenes without the isolation of the appropriate arylacetylenes.
