138689-93-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138689-93-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,6,8 and 9 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138689-93:
(8*1)+(7*3)+(6*8)+(5*6)+(4*8)+(3*9)+(2*9)+(1*3)=187
187 % 10 = 7
So 138689-93-7 is a valid CAS Registry Number.
138689-93-7Relevant academic research and scientific papers
New Allene Equivalents for the Diels-Alder Reaction: Vinyl Sulphoxide Cycloadditions
Williams, Richard Vaughan,Chauhan, Kamlesh
, p. 1672 - 1673 (2007/10/02)
2-Phenylsulphinylpropene and phenyl vinyl sulphoxide have been shown to be effective allene equivalents for the Diels-Alder reaction.
