109346-34-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109346-34-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,3,4 and 6 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 109346-34:
(8*1)+(7*0)+(6*9)+(5*3)+(4*4)+(3*6)+(2*3)+(1*4)=121
121 % 10 = 1
So 109346-34-1 is a valid CAS Registry Number.
109346-34-1Relevant articles and documents
Synthesis and Reactions of 3-Iodo-4H-pyran-4-ones
Marei, Mohamed Gaber,Mishrikey, Morcos Michael,El-Kholy, Ibrahim El-Sayed
, p. 1849 - 1852 (2007/10/02)
3-Iodo-4H-pyran-4-ones have been synthesized in excellent yield by the reaction of acetylenic β-diketones with iodine monochloride and were converted into the corresponding 4H-pyran-4-thiones.The iodopyrones and thiopyrones gave with methylamine the respe