144039-68-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144039-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,0,3 and 9 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 144039-68:
(8*1)+(7*4)+(6*4)+(5*0)+(4*3)+(3*9)+(2*6)+(1*8)=119
119 % 10 = 9
So 144039-68-9 is a valid CAS Registry Number.
144039-68-9Relevant articles and documents
Synthesis of hexahydroindol-6-ones by reaction of 2-methylthiopyrrolinium salts with Nazarov reagents
Michael,Zwane
, p. 4755 - 4758 (2007/10/02)
The title compounds 6-8 were prepared by variations of a route commencing with base-promoted condensation of N-substituted 2-methylthio-Δ1-pyrrolinium iodides 2 with Nazarov and related reagents, followed by further manipulation of substituted enamines 11-14.