5770-05-8 Usage
Uses
Methanol-18O is a labeled isotope of Methanol(M276585) a common chemical reagent in organic synthesis participating in a variety of reactions. Methanol (18o, 95%) exhibits low-temperature kinetic isotope effects
Check Digit Verification of cas no
The CAS Registry Mumber 5770-05-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,7 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 5770-05:
(6*5)+(5*7)+(4*7)+(3*0)+(2*0)+(1*5)=98
98 % 10 = 8
So 5770-05-8 is a valid CAS Registry Number.
5770-05-8Relevant articles and documents
Studies on the B(AL)2 mechanism for esther hydrolysis
Douglas,Campbell,Wigfield
, p. 1841 - 1844 (1993)
The preparation and alkaline hydrolysis of 18O-methyl 2,2-dimethylpropanoate and 18O-methyl triphenylacetate are reported. From mass spectral analysis of the carboxylic acid products, it is concluded that the former substrate is hydrolyzed exclusively by the B(AC)2 mechanism, whereas the latter substrate proceeds 95% by the B(AC)2 mechanism and 5% by the B(AL)2 mechanism. The balance between these two mechanisms is discussed.
