74491-17-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74491-17-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,9 and 1 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 74491-17:
(7*7)+(6*4)+(5*4)+(4*9)+(3*1)+(2*1)+(1*7)=141
141 % 10 = 1
So 74491-17-1 is a valid CAS Registry Number.
74491-17-1Relevant academic research and scientific papers
Preparation and Trapping of Sulphenic Acids
Barrett, Anthony G.M.,Barton, Derek H.R.,Nagubandi, Sreemulu
, p. 237 - 239 (2007/10/02)
Benzene- and toluene-α-sulphenic acids have been prepared under mild conditions from 4-benzenesulphinyl- and 4-toluene-α-sulphinyl-4-methylpentan-2-one respectively.The acids were trapped with norbornadiene.
