83769-17-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83769-17-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,7,6 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 83769-17:
(7*8)+(6*3)+(5*7)+(4*6)+(3*9)+(2*1)+(1*7)=169
169 % 10 = 9
So 83769-17-9 is a valid CAS Registry Number.
83769-17-9Relevant articles and documents
Methode generale d'obtention des α-ceto esters β-fluores
Ourari, Ali,Condom, Roger,Guedj, Roger
, p. 2707 - 2710 (1982)
A general method of synthesis of 3-alkyl (or aryl) 3-fluoro 2-oxo esters is described.The opening of glycidic esters with HF-pyridine (70percent w/w) followed by oxidation with Jones reagent, give the corresponding derivatives of fluoropyruvic esters in good yields.
