71740-65-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71740-65-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,7,4 and 0 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 71740-65:
(7*7)+(6*1)+(5*7)+(4*4)+(3*0)+(2*6)+(1*5)=123
123 % 10 = 3
So 71740-65-3 is a valid CAS Registry Number.
71740-65-3Relevant articles and documents
Acid Catalysed Reactions of Aryl Ketene Dithioacetal S-Oxides: Synthesis of Chloroketene Thioacetals and Thioesters
Hewson, Alan T.,Richardson, Stewart K.,Sharpe, David A.
, p. 2967 - 2970 (2007/10/02)
Aryl ketene dithioacetal S-oxides, on treatment with hydrochloric acid in dichloromethane, give chloroketene thioacetals.The same reaction in the presence of hydrogen sulphide gives S-methyl thioesters.
