118631-13-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 118631-13-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,6,3 and 1 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 118631-13:
(8*1)+(7*1)+(6*8)+(5*6)+(4*3)+(3*1)+(2*1)+(1*3)=113
113 % 10 = 3
So 118631-13-3 is a valid CAS Registry Number.
118631-13-3Relevant 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