68289-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68289-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,2,8 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 68289-72:
(7*6)+(6*8)+(5*2)+(4*8)+(3*9)+(2*7)+(1*2)=175
175 % 10 = 5
So 68289-72-5 is a valid CAS Registry Number.
68289-72-5Relevant articles and documents
Synthesis of Isoxazoles and Isothiazoles from α-Oxo Ketene Dithioacetals
Dieter, R. Karl,Chang, Hsiu Ju
, p. 1088 - 1092 (2007/10/02)
α-Oxo ketene dithioacetals derived from cyclohexanone, cyclopentanone, and 3-pentanone and 3,3-bis(methylthio)propenal afforded oximes 5-8, respectively, upon treatment with hydroxylamine in ethanol at reflux.Oximes 5, 7, and 8 were converted into isoxazo