82157-68-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82157-68-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,1,5 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 82157-68:
(7*8)+(6*2)+(5*1)+(4*5)+(3*7)+(2*6)+(1*8)=134
134 % 10 = 4
So 82157-68-4 is a valid CAS Registry Number.
82157-68-4Relevant academic research and scientific papers
Studies on 5-Arylidene-3-phenyl-2-methylmercaptohydantoins
Kadry, Azza M.,Mansour, Salwa A.
, p. 155 - 157 (2007/10/02)
The action of ammonium acetate on 5-arylidene-3-phenyl-2-methylmercaptohydantoins 1g,h in acetic acid led to the formation of the 5-arylidene-3-phenylhydantoin derivatives 4a,b.In absence of a solvent, ring opening and rearrangement took place with the fo
