663602-50-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 663602-50-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,3,6,0 and 2 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 663602-50:
(8*6)+(7*6)+(6*3)+(5*6)+(4*0)+(3*2)+(2*5)+(1*0)=154
154 % 10 = 4
So 663602-50-4 is a valid CAS Registry Number.
663602-50-4Relevant articles and documents
A convenient synthesis of 4-alkoxy- and 4-hydroxy-2,6-difluoroanilines
Alonso-Alija, Cristina,Michels, Martin,Peilst?cker, Karen,Schirok, Hartmut
, p. 95 - 98 (2007/10/03)
Two independent synthetic pathways for the preparation of 4-methoxy, 4-benzyloxy and 4-hydroxy-2,6-difluoroanilines, versatile building blocks in medicinal chemistry, based on diazonium coupling or Curtius-type rearrangements are presented.
