137278-49-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137278-49-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,7 and 8 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 137278-49:
(8*1)+(7*3)+(6*7)+(5*2)+(4*7)+(3*8)+(2*4)+(1*9)=150
150 % 10 = 0
So 137278-49-0 is a valid CAS Registry Number.
137278-49-0Relevant academic research and scientific papers
The Synthesis of Substituted Benzothienoquinolines and their N-methyl Quarterny Salts
Luo, Jiann-Kuan,Musmar, M. J.,Castle, Raymond N.
, p. 1309 - 1313 (2007/10/02)
Four substituted benzothienoquinolines 14a-14d were prepared by photocyclization of the appropriate carboxamides 8a-8d to the corresponding benzothienoquinolin-6(5H)-ones 12a-12d followed by chlorination to 6-chlorobenzothieno2,3-c
