105633-48-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105633-48-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,6,3 and 3 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 105633-48:
(8*1)+(7*0)+(6*5)+(5*6)+(4*3)+(3*3)+(2*4)+(1*8)=105
105 % 10 = 5
So 105633-48-5 is a valid CAS Registry Number.
105633-48-5Relevant articles and documents
A New Facile, and Convenient Synthesis of 2-Oxo-3-alkenoic Acids and Esters
Hojo, Masaru,Masuda, Ryoichi,Sano, Hiroshi,Saegusa, Makoto
, p. 137 - 139 (2007/10/02)
Activated 1-alkenes such as ketene dithioacetals, vinyl sulfides, N-vinyl amides, and N-vinylcarbazole react with oxalyl chloride or ethoxalyl chloride in the presence of pyridine to give the 2-oxo-3-alkenoic acids or ethyl esters, respectively.
