316156-03-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 316156-03-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,6,1,5 and 6 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 316156-03:
(8*3)+(7*1)+(6*6)+(5*1)+(4*5)+(3*6)+(2*0)+(1*3)=113
113 % 10 = 3
So 316156-03-3 is a valid CAS Registry Number.
316156-03-3Relevant articles and documents
Synthesis and regioselective alkylation of 1,6- and 1,7-naphthyridines
Colandrea,Naylor
, p. 8053 - 8057 (2007/10/03)
A regioselective alkylation of naphthyridines 4a-d, through the action of ethylchloroformate and benzylstannane 5, afforded the benzyl substituted dihydronaphthyridines 3a-d. These key intermediates 3a-d were transformed into the desired targets 2a-d in seven steps. (C) 2000 Elsevier Science Ltd.
