1129542-65-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1129542-65-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,2,9,5,4 and 2 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1129542-65:
(9*1)+(8*1)+(7*2)+(6*9)+(5*5)+(4*4)+(3*2)+(2*6)+(1*5)=149
149 % 10 = 9
So 1129542-65-9 is a valid CAS Registry Number.
1129542-65-9Relevant academic research and scientific papers
New syntheses on the basis of ethyl 2-oxotetrahydrofuran-3-carboxylates
Kochikyan,Arutyunyan,Arutyunyan,Avetisyan
experimental part, p. 849 - 854 (2009/06/08)
Alkylation of 5-substituted ethyl 5-methyl-2-oxotetrahydrofuran-3- carboxylates with alkyl halides in the presence of sodium ethoxide gave the corresponding 3-alkyl derivatives which were converted into 3,5-substituted 5-methyl-N-(4-nitrophenyl)-2-oxotetr
