74583-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74583-42-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,8 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74583-42:
(7*7)+(6*4)+(5*5)+(4*8)+(3*3)+(2*4)+(1*2)=149
149 % 10 = 9
So 74583-42-9 is a valid CAS Registry Number.
74583-42-9Relevant academic research and scientific papers
Preparation of Bi- and Tricyclic Pyrroles
Stetter, Hermann,Lappe, Peter
, p. 703 - 714 (2007/10/02)
Phthalimidoalkane-1,4-diones smootly react with aromatic and aliphatic amines to give the substituted (phthalimidoalkyl)pyrroles 1-16.Hydrazinolysis of these compounds yields tricyclic 4H-pyrrolobenzodiazepines 17-23 and bicyclic pyrrolo1,2-c
