171779-78-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171779-78-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,7,7 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 171779-78:
(8*1)+(7*7)+(6*1)+(5*7)+(4*7)+(3*9)+(2*7)+(1*8)=175
175 % 10 = 5
So 171779-78-5 is a valid CAS Registry Number.
171779-78-5Relevant articles and documents
Synthesis of lennoxamine via the intramolecular cyclization of alkynylamide
Koseki,Nagasaka
, p. 1604 - 1606 (2007/10/03)
This paper presents the formal synthesis of lennoxamine (1), the key step [4 into 10 via 9] of which is a novel palladium-catalyzed coupling reaction followed by intramolecular cyclization of alkynylamide.
