50553-03-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 50553-03-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,5,5 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 50553-03:
(7*5)+(6*0)+(5*5)+(4*5)+(3*3)+(2*0)+(1*3)=92
92 % 10 = 2
So 50553-03-2 is a valid CAS Registry Number.
50553-03-2Relevant articles and documents
A Synthesis of Pyrrole Derivatives from O-(2-Hydroxyethyl)-ketoximes
Dhanak, Dashyant,Reese, Colin B.,Romana, Sergio,Zappia, Giovanni
, p. 903 - 904 (1986)
Acetophenone, cyclohexanone, cycloheptanone, cyclo-octanone, and heptan-4-one were converted, via their O-(2-hydroxyethyl)-oximes into the pyrrole derivatives in satisfactory overall yields.
