77905-79-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77905-79-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,9,0 and 5 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77905-79:
(7*7)+(6*7)+(5*9)+(4*0)+(3*5)+(2*7)+(1*9)=174
174 % 10 = 4
So 77905-79-4 is a valid CAS Registry Number.
77905-79-4Relevant articles and documents
A FACILE PREPARATION OF THIOL ESTERS FROM CARBOXYLIC ACIDS AND THIOLS
Kim, Sunggak,Yang, Sungbong
, p. 133 - 134 (1981)
Thiol esters can be conveniently prepared by the reaction of carboxylic acids with thiols and 1-fluoro-2,4,6-trinitrobenzene in the presence of 4-dimethylaminopyridine.The thiol ester formation is found to be very effective for simple carboxylic acids.
