139332-26-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139332-26-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,3,3 and 2 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 139332-26:
(8*1)+(7*3)+(6*9)+(5*3)+(4*3)+(3*2)+(2*2)+(1*6)=126
126 % 10 = 6
So 139332-26-6 is a valid CAS Registry Number.
139332-26-6Relevant articles and documents
New uses of Westphal condensation: Synthesis of flavocorylene and related indolo[2,3-a]quinolizinium salts
Matia, Maria P.,Ezquerra, Jesus,Garcia-Navio, Jose L.,Vaquero, Juan J.,Alvarez-Builla, Julio
, p. 7575 - 7578 (1991)
Using the Westphal condensation, flavocorylene and related Indolo[2,3-a]-quinolizinium salts have been prepared in two steps, starting from commercially available β-carboline derivatives.
