84705-23-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84705-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,7,0 and 5 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 84705-23:
(7*8)+(6*4)+(5*7)+(4*0)+(3*5)+(2*2)+(1*3)=137
137 % 10 = 7
So 84705-23-7 is a valid CAS Registry Number.
84705-23-7Relevant academic research and scientific papers
Electrophilic Substitution in Mesoionic Thiazolo--4-pyrimidone Systems
Talukdar, P. B.,Sengupta, S. K.,Datta, A. K.
, p. 517 - 521 (2007/10/02)
Mesoionic 3-aryl-thiazolo--4-pyrimidone systems (I, R=H) are very prone to electrophilic substitution.Generation of I (R=H) from appropriate 4-oxo-Δ2-thiazolium perchlorates (III) in the presence of suitable electrophiles readily furnish
