123004-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123004-49-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,0,0 and 4 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 123004-49:
(8*1)+(7*2)+(6*3)+(5*0)+(4*0)+(3*4)+(2*4)+(1*9)=69
69 % 10 = 9
So 123004-49-9 is a valid CAS Registry Number.
123004-49-9Relevant articles and documents
Synthesis of Picenadol via Metalloenamine Alkylation Methodology
Barnett, Charles J.,Copley-Merriman, Catherine R.,Maki, James
, p. 4795 - 4800 (1989)
A convenient synthesis of the novel phenylpiperidine analgesic agent picenadol, (+/-)-1, via tetrahydropyridine 2 is described.Tetrahydropyridine 7, prepared from 6 via metalation (n-butyllithium) and alkylation with 1-bromopropane, could not be directly