79032-99-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 79032-99-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,0,3 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 79032-99:
(7*7)+(6*9)+(5*0)+(4*3)+(3*2)+(2*9)+(1*9)=148
148 % 10 = 8
So 79032-99-8 is a valid CAS Registry Number.
79032-99-8Relevant articles and documents
Fragmentation of Cyclic Carboxonium Ions, IV. - Synthesis of β-Oxa-γ, δ-enones
Mattay, Jochen,Thuenker, Walter,Scharf, Hans-Dieter
, p. 1105 - 1117 (2007/10/02)
The proton-catalyzed fragmentation of 4-methylene-1,3-dioxolanes 2 by weak acids (pK > 4.3) or weak acidic ion exchangers leads in good yields to β-oxa-γ, δ-enones 5 which are thus easily and generally available for the first time.