74983-34-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74983-34-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,9,8 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 74983-34:
(7*7)+(6*4)+(5*9)+(4*8)+(3*3)+(2*3)+(1*4)=169
169 % 10 = 9
So 74983-34-9 is a valid CAS Registry Number.
74983-34-9Relevant articles and documents
Synthesis of oxazoles and thiazoles using thioimidates
Yokoyama,Menjo,Watanabe,Togo
, p. 1467 - 1470 (1994)
Several oxazoles and thiazoles were synthesized easily by the reaction of N-(methylthioalkylidene)glycine ethyl ester with diethyl oxalate, acid halides, and thionesters in the presence of base.
