2-(methoxycarbonyl)thiophene-3-sulfonic acid

sulfonic acid (or sodium salt)  6  along with  sodium  formate:

ν max   (ATR)/cm -1     1620,  1356,  1212,  1047,  997  and  833;
 
1 H  NMR  (400  MHz,   DMSO- d 6 )  δ H  7.66 (d,  J  = 4.1 Hz, 2H), 7.27 (d,  J  = 4.1 Hz, 2H) and 3.76 (s, 3H);

13 C NMR (176  MHz,  DMSO- d 6 )  δ C  161.8,  152.7,  131.2,  129.4,  128.3  and  52.7;

m/z   (EI+)
HRMS  [M-H] - C 6 H 5 O 5 S 2 -  found  220.95792, calcd 220.95839.
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 Gaborone, Botswana

Gaborone

Capital of Botswana

Gaborone is the capital and largest city of Botswana with a population of 231,626 based on the 2011 census, about 10% of the total population of Botswana. Its agglomeration is home to 421,907 inhabitants at the 2011 census. Wikipedia

 

 

 

 

 

 

 Sir Seretse Khama International Airport (GBE)

 

 
 
 

 

 

 

 

 
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